The Bettireaction is a chemical reaction of aldehyde s, primary aromatic amine s and phenol s producing aminobenzylphenols. The Bettireaction is a special case of the Mannich reaction . Image BettiReaction Scheme.png center 300px The Bettireaction References Betti, M. Gazz. Chim. Ital. 1900 , 30 II , 301. Betti, M. Gazz. Chim. Ital. 1903 , 33 II , 2. Organic Syntheses , Coll. Vol. 1, p.381 1941 Vol. 9, p.60 1929 . http www.orgsyn.org orgsyn prep.asp?prep cv1p0381 Article Pirrone, F Gazz. Chim. Ital. 1936 , 66 , 518. Pirrone, F Gazz. Chim. Ital. 1937 , 67 , 529. Phillips, J. P. Chem. Rev. 1956 , 56 , 286. Phillips, J. P. Barrall, E. M. J. Org. Chem. 1956 , 21 , 692. Category Addition reactions Category Multiple component reactions reaction stub Category Name reactions es Reacci n de Betti nl Betti reactie ja zh Betti ... more details
Betti is a surname, and may refer to Betti number in topology, named for Enrico BettiBetti s theorem in engineering theory, named for Enrico BettiBettireaction People with the surname Betti surname Enrico Betti , Italian mathematician 1823 1892 . Emilio Betti Laura Betti Ugo Betti Umberto Betti , Italian Cardinal of the Roman Catholic Church See also Beti Betty Category Italian language surnames de Betti fr Betti it Betti ru ... more details
Infobox scientist name Enrico Betti image Betti Enrico.jpg image size 250px caption Enrico Betti birth date birth date 1823 10 21 df y birth place Pistoia , Tuscany death date death date and age 1892 08 11 1823 10 21 df y death place nationality Italy field Mathematics work institutions alma mater University of Pisa doctoral advisor Ottaviano Fabrizio Mossotti doctoral students Cesare Arzel br Luigi Bianchi br Ulisse Dini br Federigo Enriques br Gregorio Ricci Curbastro br Vito Volterra known for Betti number s br Betti s theorem prizes Enrico Betti 21 October 1823 11 August 1892 was an Italians Italian mathematician , now remembered mostly for his 1871 paper on topology that led to the later naming after him of the Betti number s. He worked also on the theory of equations , giving early expositions of Galois theory . He also discovered Betti s theorem , a result in the theory of elasticity ... politics, and the politics of the new Italian state. Works by E. Betti http quod.lib.umich.edu cgi t text text idx?c umhistmath& idno AAN8909 Opere matematiche di Enrico Betti, pubblicate per cura della R. Accademia de lincei 2vols. U. Hoepli, Milano, 1903 1913 E. Betti, Sopra gli spazi di un numero ... p5685kw657616533 ISSN 0373 3114 Betti s most well known paper . See also Betti cohomology Betti group Betti number Further reading DSB first Ettore last Carruccio title Betti, Enrico volume 2 pages 104 106 External links MacTutor Biography id Betti MathGenealogy id 26323 Persondata Metadata see Wikipedia Persondata . NAME Betti, Enrico ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH 21 October ... Betti, Enrico Category 1823 births Category 1892 deaths Category People from Pistoia Category 19th century ... of Pisa faculty Italy mathematician stub de Enrico Betti fr Enrico Betti it Enrico Betti ht Enrico Betti la Henricus Betti hu Enrico Betti nl Enrico Betti nn Enrico Betti pl Enrico Betti pt Enrico Betti ru , ... more details
Betti Alver November 23, 1906 in J geva June 19, 1989 in Tartu was the pseudonym of Elisabet Lepik Talvik ref http books.google.com books?id 2 JLL32RzrkC&pg PA237&dq betti alver&as brr 3 v onepage&q betti 20alver&f false Columbia dictionary of modern European literature By Jean Albert B d , William Benbow Edgerton ref , one of Estonia s most notable poets. She was among the first generation to be educated in schools of an independent Estonia. She went to grammar school in Tartu . ref http elm.einst.ee issue 23 soothsayer mother song divine hooligan betti alver Estonian Literary Magazine ref Writing She began as a prose writer. She became known for being a member of the Arbujad Soothsayers , a small group of influential Estonian poets including Bernard Kangro , Uku Masing , Kersti Merilaas , Mart Raud , August Sang , Heiti Talvik and Paul Viiding . After the war her husband Heiti Talvik was imprisoned by the Soviets and died in Siberia. ref http www.estlit.ee index.php?id 2023 Estonian Literature Information Centre ref On the hundredth anniversary of her birth a museum was dedicated to her in J geva . ref http www.jogevalv.ee index.php?lang eng&main id 307,2681 J geva site ref Web source references Persondata Metadata see Wikipedia Persondata . NAME Alver, Betti ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH November 23, 1906 PLACE OF BIRTH DATE OF DEATH June 19, 1989 PLACE OF DEATH DEFAULTSORT Alver, Betti Category 1906 births Category 1989 deaths Category People from J geva Category Estonian poets Category Estonian women writers estonia bio stub be de Betti Alver et Betti Alver eo Betti Alver hu Betti Alver no Betti Alver ru fi Betti Alver sv Betti Alver uk ... more details
Infobox person name Laura Betti image Betti img0100.jpg caption birth date Birth date 1927 5 1 df yes birth place Bologna , Italy death date Death date and age 2004 7 31 1927 5 1 df yes death place Rome , Latium , Italy Laura Betti May 1, 1927 ref Until her death, Laura Betti was widely believed to have been born on May 1, 1934. In fact, all her obituaries referred to the 1934 date. The actress herself had encouraged that erroneous belief. Citation needed date November 2008 ref July 31, 2004 was an Italy Italian actor actress . Born Laura Trombetti in Bologna , this blonde and flamboyant actress started her career as jazz singing singer . Betti made her film debut in Federico Fellini s La Dolce Vita . In 1963, she became a close friend of the poet and movie director Pier Paolo Pasolini , for whom she made a documentary after his death. Under Pasolini s direction she proved a wonderful talent, in many films like La ricotta 1963 and Theorem film Teorema Theorem , 1968 . In 1976, she portrayed a cruel and eroto maniacal Fascism fascist in 1900 film Novecento 1900 , directed by Bernardo Bertolucci . Since the 1960s, she dedicated much of her times to literature and politics . She became the muse for a number of leading political and literary figures in Italy and came to personify the revolutionary and Marxist era of 1970s Italy. References reflist External links imdb name id 0079341 name Laura Betti amg name id 5993 name Laura Betti http news.bbc.co.uk 2 hi entertainment 3942779.stm BBC Obituary http www.pasolini.net betti stampa.htm manifesto Il Manifesto Obituaries Metadata see Wikipedia Persondata Persondata NAME Betti, Laura ALTERNATIVE NAMES SHORT DESCRIPTION Actress DATE ... , Latium , Italy DEFAULTSORT Betti, Laura Category 1927 births Category 2004 deaths Category Deaths ... Category People from Bologna Category Volpi Cup winners ca Laura Betti de Laura Betti fr Laura Betti it Laura Betti hu Laura Betti pl Laura Betti sc Laura Betti sv Laura Betti zh ... more details
infobox cardinalstyles cardinal name Umberto Betti dipstyle His Eminence offstyle Your Eminence See Umberto Betti , Franciscan O.F.M. , Doctor of Sacred Theology S.T.D. 7 March 1922 1 April 2009 was an Italy Italian priest of the Order of Friars Minor who on 24 November 2007 was appointed a Cardinal Catholicism Cardinal Deacon of the Roman Catholic Church . Betti was born in Pieve Santo Stefano , Province of Arezzo . He began his novitiate in the Province of St. Francis Stigmatised in Tuscany on 23 July 1937, made his first profession on the 2 August 1938 and his solemn profession on 31 December 1943. He was ordained priest on 5 April 1946. He obtained his doctorate in Dogmatic Theology and followed specialised studies at the Catholic University of Louvain in 1951 1951, after which he taught dogmatic theology in the order s study houses in Siena and Fiesole, and again in 1963 1964, after which he was appointed professor at the Pontifical University Antonianum in Rome, where he taught until 1991. He was a consultant to the Preparatory Theological Commission for the Vatican II Council, in which he was also an expert. He contributed to the writing of the Dogmatic Constitutions Dei Verbum ... Lateran University from 1991 to 1995. On 24 November 2007, Betti was appointed Cardinal Deacon ... Umberto Betti, O.F.M. publisher Catholic Hierarchy database cite web accessdate 2007 11 24 url http www.ofm.org ofmnews ?p 1315 title Br. Umberto Betti, O.F.M. appointed Cardinal Deacon by Benedict XVI ... www.fiu.edu mirandas bios2007.htm Betti Cardinal Umberto Betti, Cardinals of the Holy Roman Church website Persondata Metadata see Wikipedia Persondata . NAME Betti Umberto ALTERNATIVE NAMES SHORT DESCRIPTION ... OF DEATH DEFAULTSORT Betti Umberto Category 1922 births Category 2009 deaths Category People from ... Benedict XVI de Umberto Betti fr Umberto Betti it Umberto Betti nl Umberto Betti no Umberto Betti pl Umberto Betti pt Umberto Betti ru , ... more details
Notability Astro date February 2012 Infobox planet minorplanet yes width 25em bgcolour FFFFC0 apsis name Betti symbol image caption discovery yes discovery ref discoverer P. G. Comba discovery site Prescott Observatory Prescott discovered April 18, 1999 designations yes mp name 17076 alt names 1999 HO mp category orbit ref epoch May 14, 2008 aphelion 2.6318769 perihelion 2.2164393 semimajor eccentricity 0.0856870 period 1378.6049322 avg speed inclination 7.05447 asc node 48.66002 mean anomaly 186.67249 arg peri 108.98870 satellites physical characteristics yes dimensions mass density surface grav escape velocity sidereal day axial tilt pole ecliptic lat pole ecliptic lon albedo temperatures temp name1 mean temp 1 max temp 1 temp name2 max temp 2 spectral type abs magnitude 15.0 17076 Betti 1999 HO is a Asteroid belt main belt asteroid discovered on April 18, 1999 by P. G. Comba at Prescott Observatory Prescott . References Reflist External links http ssd.jpl.nasa.gov sbdb.cgi?sstr 17076 Betti JPL Small Body Database Browser on 17076 Betti MinorPlanets Navigator 17075 Pankonin 17077 Pampaloni MinorPlanets Footer DEFAULTSORT Betti Category Main Belt asteroids Category Discoveries by Paul G. Comba Category Astronomical objects discovered in 1999 beltasteroid stub fa it 17076 Betti pl 17076 Betti pt 17076 Betti uk 17076 vi 17076 Betti yo 17076 Betti ... more details
unreferenced date September 2009 Emilio Betti Camerino August 20, 1890 Camorciano di Camerino August 11, 1968 was an Italy Italian jurist , Roman Law scholar, philosopher and theologian . He is best known for his contributions to hermeneutics , part of a broad interest in interpretation. As a legal theorist, Betti is close to Interpretivism legal interpretivism . Betti s intellectual support of fascism between the end of World War I and the beginning of the 1920ss led him to be arrested in 1944, in Camerino. Betti remained in prison for about a month, as decided by the Comitato di Liberazione Nazionale . In August 1945, Betti was presented to court and absolved of every accusation. His political choices, anyway, have not diminished the value and importance of his work. Between many other things, Betti was one of the members of the drafting commission for the Italian civil code of 1942. Betti is perhaps best known for his work in hermeneutics . He took issue with the hermeneutic views of Hans Georg Gadamer and argued that interpreters should attempt to reconstruct the author s intentions. His work influenced the work of E. D. Hirsch , the chief English language spokesman for authorial intention. However, his influence in English has been limited by the lack of translations of his hermeneutic work. Major works Betti was a prolific writer. This is just a small part of his works Sulla opposizione dell exceptio sull actio e sulla concorrenza tra loro 1913 . La vendicatio romana primitiva ... 1967 . Book on Betti Ciocchetti, Mario 1998 . Emilio Betti, Giureconsulto e umanista . Belforte del Chienti. jurisprudence Persondata Metadata see Wikipedia Persondata . NAME Betti, Emilio ... 11, 1968 PLACE OF DEATH DEFAULTSORT Betti, Emilio Category Italian academics Category Italian jurists Category 1890 births Category 1968 deaths Category Italian philosophers it Emilio Betti pt Emilio Betti sk Emilio Betti ... more details
Ugo Betti Camerino , February 4, 1892 Rome , June 9, 1953 was an Italy Italian judge, better known as an author, who is considered by many the greatest Italian playwright next to Luigi Pirandello Pirandello . Betti studied law in Parma at the time when World War I broke out, and he volunteered as a soldier. After the war he finished his studies and became a judge. Writing in his spare time, he published his first collections of poems in 1922. These, titled Il re pensieroso The Thoughtful King , were written while he was in German captivity from 1917 to 18. La Padrona , his first play, was first performed in 1927, and the play s success made him devote himself entirely to the theatre. In 1931 he moved from Parma to Rome. In 1938 he was accused by the fascists of being a Jew and an anti fascist. After World War II , he was accused of being a fascist, but was cleared of all charges. In his later years, he worked at the library of the Ministry of Justice. Altogether he wrote 27 plays, the most highly regarded written in the final period of his career, from 1940 until his death. His works explore the nature of evil, the existential guilt experienced by his protagonists, and the theme of redemption. Sometimes referred to as the Italian Kafka , the criminal investigation is a characteristic motif in his plays. In The Inquiry , the procedure moves gradually from the realistic to the metaphysical ... play The Fugitive . Further reading Eric Salmon. Ugo Betti s Troubled Waters. Modern Drama 11 1968 97 108. Harold H. Watts. Ugo Betti The Theater of Shame. Modern Drama 12 1969 64 79. Persondata Metadata see Wikipedia Persondata . NAME Betti, Ugo ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH February 4, 1892 PLACE OF BIRTH DATE OF DEATH June 9, 1953 PLACE OF DEATH DEFAULTSORT Betti ... Italian dramatists and playwrights ca Ugo Betti de Ugo Betti es Ugo Betti eu Ugo Betti fr Ugo Betti it Ugo Betti nl Ugo Betti pl Ugo Betti ro Ugo Betti ru , ... more details
Biagio Betti 1535 1605 was an Italy Italian painter of the Renaissance period. He was born in Cutigliano , and was a pupil of Daniele da Volterra . He became, in 1557, a monk of the order of the Theatines of San Silvestro al Quirinale , and his works are principally confined to the monastery of that order in Rome . In the refectory he painted the Miracle of the Loaves and Fishes which was restored by Paolo Anesi in 1847 and in the library, Christ disputing with the Doctors . References cite book first Michael last Bryan year 1886 title Dictionary of Painters and Engravers, Biographical and Critical Volume I A K editor Robert Edmund Graves pages page 9 publisher George Bell and Sons location York St. 4, Covent Garden, London Original from Fogg Library, Digitized May 18, 2007 id url http books.google.com books?id 4GYCAAAAYAAJ&printsec titlepage&dq DICTIONARY AACHEN AALST&as brr 1 authorlink Persondata Metadata see Wikipedia Persondata . NAME Betti, Biagio ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH 1535 PLACE OF BIRTH DATE OF DEATH 1605 PLACE OF DEATH DEFAULTSORT Betti, Biagio Category 1535 births Category 1605 deaths Category Italian painters Category Renaissance painters Italy painter 16thC stub da Biagio Betti fr Biagio Betti ... more details
Infobox person name Paulo Betti image Paulo Betti.jpg imagesize caption birth name Paulo S rgio Betti birth date Birth date and age mf yes 1952 9 10 birth place Rafard , S o Paulo state S o Paulo death date death place othername occupation Film director, producer yearsactive 1979 present spouse Eliane Giardini small 1973&ndash 1997 small br Maria Ribeiro small 2003&ndash 2005 small domesticpartner website Paulo Betti Born September 10, 1952 is a Brazil ian Theatre stage , film and television actor . He also works occasionally as a film producer and Film director director . Biography Paulo S rgio Betti was born on September 10, 1952 in Rafard , a small town in the state of S o Paulo state S o Paulo . In over thirty years of career, Betti has acted in over 20 telenovela s and in 21 feature films. His most notable role was as the revolutionary Captain Carlos Lamarca in Lamarca film Lamarca 1994 and Zuzu Angel film Zuzu Angel 2006 , both directed by S rgio Rezende . For his role in Lamarca , he won the S o Paulo Association of Art Critics Award for Best Film Actor in 1995. He also hosted the show Novos Nomes em Cena of Canal Brasil , where he interviewed young Brazilian actors. Betti was married to actress Eliane Giardini between 1973 and 1997. The couple had two daughters Juliana born in 1977 and Mariana born in 1980 . He was also married to actress Maria Ribeiro , mother of his only son Jo o born on March 30, 2003 . The couple separated in 2005. Political views In 1989 Betti was one ... famous artists of the time sing the jingle. Betti supported Lula throughout all of his presidential ... 1985 Jogo Duro External links IMDb name id 0079343 name Paulo Betti Persondata Metadata see Wikipedia Persondata . NAME Betti, Paulo ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH September ... Betti, Paulo Category 1952 births Category Living people Category Brazilian people of Italian descent Category Brazilian actors Category Brazilian telenovela actors Brazil actor stub pt Paulo Betti ru ... more details
In algebraic topology , a mathematical discipline, the Betti numbers can be used to distinguish topological space s. Intuitively, the first Betti number of a space counts the maximum number of cuts that can be made without dividing the space into two pieces. Each Betti number is a natural number or Extended ... manifold s, finite simplicial complex es or CW complex es , the sequence of Betti numbers is 0 from some points onwards Betti numbers vanish above the dimension of a space , and they are all finite. The term Betti numbers was coined by Henri Poincar after Enrico Betti . Informal Definition Image ... yielding Betti numbers of 1,2,1. Informally, the k th Betti number refers to the number of unconnected ... 2009 255 308. ref The first few Betti numbers have the following intuitive definitions b sub 0 sub ... k , the k th Betti number b sub k sub X of the space X is defined as the rank of an abelian ... can define b sub k sub X , F , the k th Betti number with coefficients in F , as the vector space dimension of H sub k sub X , F . Example the first Betti number in graph theory In topological graph theory the first Betti number of a graph G with n vertices, m edges and k connected components ... components. See cyclomatic complexity for an application of the first Betti number in software engineering . Properties The rational Betti numbers b sub k sub X do not take into account any torsion ... , the first Betti number is 1. For a general pretzel, the first Betti number is twice ... dimensional spaces , i.e. the generating function of the Betti numbers of X math P X z b 0 X b 1 X ... , the Betti numbers are independent of F . The connection of p torsion and the Betti number for characteristic ... theorem based on Tor functors , but in a simple case . Examples The Betti number sequence for a circle is 1, 1, 0, 0, 0, ... the Poincar polynomial is math 1 x , math . The Betti number sequence ... is math 1 x 2 1 2x x 2 , math . The Betti number sequence for a three torus is 1, 3, 3, 1, 0, 0 ... more details
Multiple issues primary sources October 2008 notability June 2011 Betti Alisjahbana is a businesswoman in Indonesia . Alisjahbana graduated with a Bachelor of Architecture from the Bandung Institute of Technology . Alisjahbana has worked in information technology , both in Indonesia and in the also South Asia region. She began working for IBM Indonesia in 1984. From 1996 to 1998, she served as General Manager, General Business, IBM ASEAN and South Asia. From 1998 1999, she was General Manager, e business and Cross Industry Solutions for IBM ASEAN and South ASIA. From 2000 to 2008, she was the CEO of IBM Indonesia. She was the first woman ever throughout all IBM in Asia Pacific regions to lead IBM operations for the country. Citation needed date October 2008 In 2008, Alisjahbana founded QB International , a company that focuses on the creative industry. QB Headlines, QB Architects and QB Creative IT are three lines of businesses she is currently involved with in the company. At the closing of Indonesia Goes Open Source IGOS Indonesia, Go Open Source on May 28, 2008, along with the official establishment of Association for Open Source Indonesia AOSI , Alisjahabana was appointed as the Ambassador for Open Source Indonesia and now sits as the Chairwoman of AOSI. She is also on the Board of Trustees of United States Indonesia Society USINDO and recently was elected to sit on the Board of Trustees of the Bandung Institute of Technology ITB . She also serves as the Chairwoman of Tujuh Sembilan ITB Foundations. References http www.aosi.or.id english aosi prolog.php Profile for Betti Alisjahbana at AOSI http www.qbheadlines.com english career.php?cat 8 Profile for Betti Alisjahbana at QBHeadlines Persondata NAME Alisjahbana, Betti ALTERNATIVE NAMES SHORT DESCRIPTION Businesswoman DATE OF BIRTH PLACE OF BIRTH DATE OF DEATH PLACE OF DEATH DEFAULTSORT Alisjahbana, Betti Category Indonesian businesspeople Category Living people Category Year of birth missing living people Category ... more details
Betti s theorem , also known as Maxwell Betti reciprocal work theorem , discovered by Enrico Betti in 1872, states that for a linear elastic structure subject to two sets of forces P sub i sub i 1,...,m and Q sub j sub , j 1,2,...,n, the Mechanical work work done by the set P through the displacements produced by the set Q is equal to the work done by the set Q through the displacements produced by the set P. This theorem has applications in structural engineering where it is used to define influence line s and derive the boundary element method . Betti s theorem is used in the design of compliant mechanisms by topology optimization approach. Demonstration Consider a solid body subjected to a pair of external force systems, referred to as math F P i math and math F Q i math . Consider that each force system causes a displacement fields, with the displacements measured at the external force s point of application referred to as math d P i math and math d Q i math . When the math F P i math force system is applied to the structure, the balance between the work performed by the external force system and the strain energy is math frac 1 2 sum n i 1 F P id P i frac 1 2 int Omega sigma P ij epsilon P ij ,d Omega math The work energy balance associated with the math F Q i math force system is as follows math frac 1 2 sum n i 1 F Q id Q i frac 1 2 int Omega sigma Q ij epsilon Q ij ,d Omega math Now, consider that with the math F P i math force system applied, the math F Q i math force system is applied subsequently. As the math F P i math is already applied and therefore won t cause ... at point 1 of math Delta Q1 math . Betti s reciprocity theorem states that math P , Delta Q1 ... E & FN SPON location London, New York isbn 0 419 21200 0 page 215 DEFAULTSORT Betti s Theorem Category Structural analysis Category Continuum mechanics Category Physics theorems de Satz von Betti es Teorema de Maxwell Betti hu Betti t tel pl Zasada wzajemno ci prac Bettiego pt Teorema de Maxwell Betti ... more details
Infobox Album See Wikipedia WikiProject Albums Name Betti Cola Type Album Artist Cub band Cub Cover Betticola.jpg Released October 1, 1993 Recorded Genre Indie pop Length 53 33 Label Mint Records Producer Last album This album Betti Cola br 1993 Next album Come Out Come Out br 1995 Album ratings rev1 Allmusic rev1Score Rating 4.5 5 Allmusic class album id r261339 pure url yes link rev2 Pitchfork Media rev2Score 8.0 10 http pitchfork.com reviews albums 11902 betti cola come out come out link Betti Cola is the 1993 debut album from Canada Canadian twee pop group Cub band Cub . Originally released in fall of 1993, the album was remastered and re released with bonus tracks in 2007 by Mint Records . The album features tracks taken from various 7 EP s as well as a handful of covers. Cover art is courtesy of legendary Archie Comics cartoonist Dan DeCarlo . Track listing all songs written by Cub, except where indicated Go Fish 2 00 What The Water Gave Me 1 14 Motel 6 2 21 A Party 1 18 Flying Carpet 2 38 My Chinchilla 1 23 Electric Chair 2 33 Nicolas Bragg 1 56 Pretty Pictures 1 38 They Don t 1 40 A Picnic 1 24 It s True 1 28 Someday 1 44 Cast A Shadow Beat Happening cover 2 12 The Day We Met 1 34 Surfer Girl Beach Boys cover 1 33 Little Star 1 13 My Assassin 1 51 Tell Me Now Daniel Johnston cover 3 00 Lucky 7 1 46 Through My Hoop 2 25 Leapfrog 2 10 Backwoods Windwalker band Windwalker cover 3 14 What The Water Gave Me NFA band NFA covers cub 3 45 2007 Bonus Tracks Chico 1 15 Sweet Pea Tommy Roe cover 1 24 Summer Samba Astrud Gilberto cover 1 41 Hello Kitty 1 33 Personnel Lisa Marr vocals, bass Robynn Iwata guitar, back up vocals Valeria Fellini drums, back up vocals Neko Case drums Dave Carswell drums, acoustic guitar, glockenschpiel Category 1993 debut albums Category Cub albums Category Mint Records albums ... more details
Wiktionary reactionReaction may refer to Response disambiguation Response to another event Adverse drug reaction Chemical reaction Emotional reaction Light reaction Nuclear reaction TNA Reaction , a documentary show of Total Nonstop Action Wrestling TNA behind scenes. Reaction physics , as defined by Newton s third law Reactionary , a political tendency Reflex reaction other uses Reaction Records , a record label ReAction GUI a GUI toolkit used on AmigaOS Reaction software , a Perl application framework Reaction song Reaction song , a 1986 song by American R&B singer Rebbie Jackson Reaction , a 2008 single by Dead Letter Circus Disambiguation als Reaktion ar bg cs Reakce de Reaktion et Reaktsioon el es Reacci n eo Reakcio fa fr R action gl Reacci n ko hr Reakcija it Reazione nl Reactie ja no Reaksjon pl Reakcja pt Rea o ro Reac ie ru simple Reaction sr Reakcija fi Reaktio uk zh ... more details
drug . See also Bettireaction Pictet Spengler reaction Kabachnik Fields reaction References ...The Mannich reaction is an organic reaction which consists of an amino alkylation of an acidic proton placed next to a carbonyl functional group with formaldehyde and ammonia or any primary or secondary amine . The final product is a amino carbonyl compound also known as a Mannich base . ref Original ... Mannich reactions because these imines form between amines and aldehydes. The reaction is named ... Reactions Org. React. 1942 , 1 . ref image Mannich Reaction V.1.png center 500px Scheme 1. Ammonia ... carbonyl compound The Mannich reaction is an example of nucleophilic addition of an amine to a carbonyl ... is, or had become an enol . The Mannich reaction is also considered a condensation reaction . In the Mannich reaction, ammonia or primary or secondary amine s are employed for the activation of formaldehyde ... such as furan , pyrrole , and thiophene . Indole is a particularly active substrate the reaction provides gramine derivatives. Reaction mechanism The mechanism of the Mannich reaction starts ... rise to two diastereomeric pairs of enantiomers. The first asymmetric Mannich reaction with an unmodified ... 4. Asymmetric Mannich reactions ref. Cordova 2002 The reaction taking place is between a simple ... p methoxyaniline PMP paramethoxphenyl catalyzed by S proline in dioxane at room temperature . The reaction ... reaction 3 1 when the alkyl substituent on the aldehyde is a methyl group or 19 1 when the alkyl group the much larger pentyl group. Of the two possible syn adducts S,S or R,R the reaction is also enantioselective ... to form an enamine . The two reactants imine and enamine line up for the Mannich reaction ... with at least 97 enantiomeric excess ee . Applications The Mannich Reaction is employed in the organic ... ref The Mannich reaction is also used in the synthesis of medicinal compounds e.g. rolitetracycline ... Mannich reaction Category Carbon carbon bond forming reactions Category Multiple component reactions ... more details
A reaction step of a chemical reaction is defined as An elementary reaction , constituting one of the stages of a stepwise reaction in which a reaction intermediate or, for the first step, the reactants is converted into the next reaction intermediate or, for the last step, the product chemistry products in the sequence of intermediates between reactants and products . ref http goldbook.iupac.org R05178.html IUPAC Gold Book definition of reaction step ref Notes reflist Category Chemical kinetics physical chemistry stub et Reaktsiooni staadium pt Etapa de rea o ... more details
Gomberg reaction may refer to Gomberg Bachmann reaction , an aryl aryl coupling reaction via a diazonium salt . Gomberg Free radical reaction , a reaction in which triphenylmethyl radical is prepared by treating triphenylmethyl chloride with a metal like Silver Ag or Zinc Zn in presence of diethyl ether or benzene . See also Moses Gomberg , the scientist whom the reaction names honor. disambig ... more details
The Carbylamine reaction is a chemical test for detection of primary amine s. In this reaction, the analyte is heated with alcoholic potassium hydroxide and chloroform. If a primary amine is present, the isocyanide is formed. For example, the reaction with ethylamine Image Carbylamine.png 500px The carbylamine reaction with ethyl amine The reaction with aniline File Aniline carbylamine reaction.png 500px The carbylamine reaction with aniline The carbylamine test does not give a positive reaction with secondary and tertiary amines. References http www.books about california.com Pages Experimental Organic Chemistry Ex Organic Chem Chap 09.html Carbylamine reaction Category Organic reactions Category Chemical tests es Reacci n carbilamina ta ... more details
The Fernandez reaction is reaction that occurs to signal a positive result in the lepromin skin test for leprosy . The reaction occurs in the skin at the site of injection if the body possesses antibody antibodies to the Dharmendra antigen , one of the antigen s found in Mycobacterium leprae , the bacteria that causes leprosy. The reaction occurs via a delayed type hypersensitivity mechanism. This reaction occurs within 48 hours of injection of lepromin and is seen in both lepromatous and tuberculoid forms of leprosy. In contrast, the Mitsuda reaction occurs 5 6 weeks after injection of lepromin and is only seen in patients with the tuberculoid form of leprosy not the lepromatous form, in which the body does not mount a strong response against the bacterium . In terms of mechanism of action and appearance, the reaction is similar to the tuberculin reaction of a positive Mantoux test for tuberculosis . Category Skin tests Category Leprosy medical stub ... more details
The Povarov reaction is an organic reaction described as a formal cycloaddition between an aromatic imine and an alkene . The imine in this organic reaction is a condensation reaction product from an aniline ... be able to donate electrons. Such alkenes are enol ether s and enamine s. The reaction product in the original Povarov reaction is a quinoline . Because the reactions can be carried out with the three components premixed in one reactor it is an example of a multi component reaction . Image Povarov reaction general.svg Povarov reactionReaction mechanism The reaction mechanism for the Povarov reaction ... base in a condensation reaction . The Povarov reaction requires a lewis acid such as boron trifluoride to activate the imine for an electrophilic addition of the activated alkene . This reaction ... substitution . Two additional elimination reaction s create the quinoline ring structure. Image PovarovReaction.gif frame center Scheme 1 . The Povarov reaction The reaction is also classified as a subset of aza Diels Alder reaction s ref Recent synthetic developments in a powerful imino Diels Alder reaction Povarov reaction application to the synthesis of N polyheterocycles and related alkaloids ... ref Examples The reaction depicted in scheme 2 illustrates the Povarov reaction with an imine ... in Povarov reaction of benzylidene 3 nitrophenyl amine Paul J. Stevenson and Isla Graham ... ref . This reaction is regioselective because the iminium ion preverentially attacks the nitro ..., the most electron rich ring position is now ortho and not para. The reaction is also Diastereomer ... 2 regio and diastereoselective Povarov reaction Variations One variation of the Povarov reaction is a four component reaction ref Straightforward Access to a Structurally Diverse Set of Oxacyclic Scaffolds through a Four Component Reaction Oscar Jim nez, Guillermo de la Rosa, Rodolfo Lavilla Angewandte ... cgi bin abstract 112092897 ABSTRACT Abstract ref . Whereas in the traditional Povarov reaction ... more details
The Doebner reaction is the chemical reaction of an aniline with an aldehyde and pyruvic acid to form quinoline 4 carboxylic acid s. ref Doebner, O. Ann. 1887 , 242 & 265. ref ref Bergstrom, F. W. Chem. Rev. 1944 , 35 , 156. Review ref Image Doebner Reaction Scheme.png center 350px The Doebner reaction References Reflist See also Conrad Limpach reaction Doebner Miller reactionreaction stub Category Carbon carbon bond forming reactions Category Condensation reactions Category Quinoline forming reactions Category Multiple component reactions Category Name reactions ar ca Reacci de Doebner es S ntesis de quinolinas de Doebner zh ... more details
A stepwise reaction ref http www.iupac.org goldbook S05970.pdf IUPAC Gold Book definition ref is a chemical reaction with one or more reaction intermediate s and involving at least two consecutive elementary reaction s. The rate law of an elementary reaction is rather simple. On the other hand, when combining multiple elementary steps, the rate law can become rather complex. Moreover, when speaking about catalytic reactions, the diffusion may also limit the reaction. In general, however, there is one very slow step, which is the rate determining step, i.e. the reaction doesn t proceed any faster than the rate determining step proceeds. Organic reactions, especially when involving catalysis , are often stepwise. For example, a typical enol reaction consists of at least these elementary steps Deprotonation next to to the carbonyl HC&ndash C O C C&ndash O sup &ndash sup Attack of enolate R sup sup C C&ndash O sup &ndash sup R&ndash C&ndash C O R sup sup is an electron acceptor, for example, the carbon of a carbonyl C O . A very strong base, usually an alkoxide , is needed for the first step. Reaction intermediates may be trapped in a trapping reaction . This proves the stepwise nature of the reaction and the structure of the intermediate. For example, superacid s were used to prove the existence of carbocation s. See also Lindemann mechanism External links references Category Chemical kinetics reaction stub et Astmeline reaktsioon pt Rea o em etapas ... more details
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