Image Ketone group 2D skeletal.svg 150px right thumb Ketone group Multiple image direction vertical align ... , a ketone IPAc en icon k i t o n is an organic compound with the structure RC O R , where ... sugars and the industrial solvent acetone . Nomenclature and etymology The word ketone derives its name from Aketon , an old German word for acetone. ref http www.etymonline.com index.php?term ketone ... ketone carbon C hydrogen H sub 3 sub C oxygen O CH sub 3 sub . The position of the carbonyl group is usually denoted by a number. Although used infrequently, oxo is the IUPAC nomenclature for a ketone ... , keto or oxo is the term used to describe the ketone functional group . The term oxo is used .... The ketone carbon is often described as sp sup 2 sup hybridized, terminology that describes both .... A ketone that has an hydrogen participates in a so called keto enol tautomerism . The reaction ... C O CH sub 3 sub is an unsymmetrical ketone. In the area of stereochemistry , unsymmetrical ketones ... is methyl vinyl ketone , CH sub 3 sub C O CH CH sub 2 sub , which is useful in Robinson annulation reaction. Lest there be confusion, a ketone itself is a site of unsaturation that is, it can be hydrogenated ..., a symmetrical cyclic ketone, is an important intermediate in the production of nylon . Isophorone , derived from acetone, is an unsaturated, unsymmetrical ketone that is the precursor to other polymers. Muscone , 3 methylpentadecanone, is an animal pheromone . Another cyclic ketone is Cyclobutanone ... the presence of a ketone, Carbon 13 NMR sup 13 sup C NMR spectra exhibit signals somewhat ... II sulfate HgSO sub 4 sub . Subsequent enol keto tautomerization gives a ketone. This reaction always produces a ketone, even with a terminal alkyne. From Weinreb ketone synthesis Weinreb Amides using ... alkoxide salt, hydrolysis of which gives the alcohol , an example of ketone reduction With halogen ... to give a deuteration deuterated ketone Fragmentation in photochemical Norrish reaction Reaction ... more details
Image Hydroxyketone.svg right Hydroxy ketones A hydroxy ketone in organic chemistry is a functional group consisting of a ketone flanked by a alcohol hydroxyl group. In the two main classes the hydroxyl group can be placed in the alpha position an alpha hydroxy ketone RCR OH CO R or in the beta position a beta hydroxy ketone, RCR OH CR sub 2 sub CO R . An alpha hydroxy ketone is called an acyloin Prominent beta hydroxy ketones are aldol adduct s. Disamb sr Hidroksi keton ... more details
chembox verifiedrevid 355904776 ImageFile Perilla ketone.png ImageSize 200px IUPACName 1 3 Furanyl 4 methyl 1 pentanone OtherNames beta Furyl isoamyl ketone Section1 Chembox Identifiers CASNo 553 84 4 PubChem 68381 SMILES CC C CCC C1 COC C1 O Section2 Chembox Properties C 10 H 14 O 2 MolarMass Appearance Liquid Density 0.9920 g cm MeltingPt 25 C BoilingPtC 196 Solubility Section3 Chembox Hazards MainHazards FlashPt Autoignition Perilla ketone is a natural terpenoid that consists of a furan ring with a six carbon side chain containing a ketone functional group. It is a colorless oil that is sensitive to oxygen, becoming colored upon standing. Perilla ketone is present in the leaves and seeds of purple mint Perilla frutescens , which is toxic to some animals. When cattle and horses consume purple mint when grazing in fields in which it grows, the perilla ketone causes pulmonary edema leading to a condition sometimes called perilla mint toxicosis. References http www.hort.purdue.edu newcrop proceedings1993 V2 322.html Perilla Botany, Uses and Genetic Resources Category Furans Category Ketones Category Monoterpenes fa ... more details
liquid is a mixture of dibenzyl ketone and minor impurities, note if this mixture is heated above 200 205 C resinification occurs with a decrease in the yield of the ketone. Category Ketones ketone ... more details
Image Ketone bodies.png thumb 120px right Chemical structures of the three ketone bodies acetone top , acetoacetic acid middle , and beta hydroxybutyric acid bottom . Ketone bodies are three water soluble compounds that are produced as by product s when fatty acids are broken down for Energy biology energy in the liver and kidney . Two of the three are used as a source of energy in the heart and brain ... bodies , they are dissolved substances, not particles. The three endogenous ketone bodies are acetone ... title Ketone bodies a review of physiology, pathophysiology and application of monitoring to diabetes ... hydroxybutyric acid is not technically a ketone but a carboxylic acid . Other ketone bodies such as beta ... triglycerides such as triheptanoin . Uses in the heart and brain Ketone bodies can be used for energy. Ketone bodies are transported from the liver to other tissues, where acetoacetate and beta ... ketotic conditions, the heart can effectively utilize ketone bodies for energy. ref cite journal ... url ref The brain gets a portion of its energy from ketone bodies when glucose is less available e.g. ... ketone bodies such as fatty acids , but the brain does not. After the diet has been changed to lower blood glucose for 3 days, the brain gets 25 of its energy from ketone bodies. ref cite journal pmid ... . Production Image Acetyl CoA 2D.png thumb Acetyl CoA Ketone bodies are produced from acetyl ... state. Acetone is produced by spontaneous decarboxylation of acetoacetate meaning this ketone ... ketone bodies accumulate, this state is called ketosis . Ketosis can be quantified by sampling ... glucose and ketone bodies lower the PH of the blood and trigger the kidneys to attempt to excrete ... upon pH Both acetoacetic acid and beta hydroxybutyric acid are acid ic, and, if levels of these ketone ... . See also Fatty acid metabolism Ketogenesis Ketosis Ketone s References reflist External links eMedicine ... of Ketone Bodies MeshName Ketone Bodies Cholesterol and steroid intermediates DEFAULTSORT Ketone ... more details
R22 Raspberry ketone is a natural phenol ic compound that is the primary aroma compound of red ..., J. Hall, R. title Microbial production of natural raspberry ketone journal Biotechnol. J. year 2007 ... raspberry ketone on generally recognized as safe GRAS status. ref cite journal author Opdyke, D ... 8 ref In plants, raspberry ketone is synthesized from coumaroyl CoA . ref http biocyc.org META new image?type PATHWAY&object PWY 5393 MetaCyc Pathway raspberry ketone biosynthesis ref Extraction of pure raspberry ketone is usually 1 4 mg per kg of raspberries. ref name Beekwilder Since the natural abundance of raspberry ketone is very low, it is prepared industrially by a variety of methods from ... raspberry ketone and some pharmaceutically active compounds journal J. Org. Chem. volume 59 .... In acetone and sodium hydroxide , 4 hydroxybenzaldehyde can form the , unsaturated ketone. This then goes through catalytic hydrogenation to produce raspberry ketone. This method produces ... Ketone and Zingerone, and Their Preparation by Crossed Aldol Catalytic Hydrogenation Sequences journal ... doses up to 2 of food intake , raspberry ketone has been shown to prevent high fat diet induced elevations ... H title Anti obese action of raspberry ketone journal Life Sci. volume 77 issue 2 pages 194 204 ... ketone ... more details
chembox verifiedrevid 414534712 Name Michler s Ketone ImageFile Michler s ketone.png ImageSize 200px OtherNames 4,4 bis N,N dimethylamino benzophenone, 4,4 bis Dimethylamino benzophenone bis p N , N dimethylamino phenyl ketone Michler ketone Michler s Ketone Section1 Chembox Identifiers SMILES CASNo 90 94 8 RTECS KEGG Ref keggcite correct kegg KEGG C19266 Section2 Chembox Properties Formula C sub 17 sub H sub 20 sub N sub 2 sub O MolarMass 268.36 g mol Appearance colorless solid Density Melting point 173 C BoilingPt Viscosity RefractIndex Section3 Chembox Structure Dipole Section7 Chembox Hazards ExternalMSDS http msds.chem.ox.ac.uk BI 4,4 bis dimethylamino benzophenone.html External MSDS EUClass not listed NFPA H NFPA F NFPA R FlashPt Section8 Chembox Related Function OtherFunctn OtherCpds Benzophenone Michler s ketone is an organic compound with the formula of CH sub 3 sub sub 2 sub NC sub 6 sub H sub 4 sub sub 2 sub CO. This electron rich derivative of benzophenone is an intermediate in the production of dyes and pigments, for example Methyl violet . It is also used as a sensitizer . ref Kan, Robert O. Organic Photochemistry McGraw Hill, New York, 1966. ref It is named after the German chemist Wilhelm Michler . Synthesis The ketone is prepared today as it was originally by Michler ref cite journal title Synthese aromatischer Ketone mittelst Chlorkohlenoxyd author W. Michler journal ..., also a precursor to dyes, is prepared similarly. Uses Michler s ketone is an intermediate in the synthesis ... s ketone with N phenyl 1 naphthylamine gives the dye Victoria Blue B CAS 2580 56 5, CI Basic ... s ketone is commonly used as an additive in dyes and pigments as a sensitizer for photoreactions because of its absorption properties. Michler s ketone is an effective sensitizer provided energy transfer ... of Michler s ketone with itself. Specifically Michler s ketone absorbs intensely at 366 nm and effectively ... H sub 4 sub sub 2 sub CS, is prepared by treatment of Michler s ketone with hydrogen sulfide in the presence ... more details
In organic chemistry ketone halogenation is a special type of halogenation . The position alpha next to the carbonyl group in a ketone is easily halogenated, due to the ability to form an enolate anion enolate in basic chemistry basic solution, or an enol in acidic solution. An example is the bromination of acetone in basic solution big CH sub 3 sub CO CH sub 3 sub OH sup sup CH sub 3 sub CO CH sub 2 sub sup sup H sub 2 sub O big big CH sub 3 sub CO CH sub 2 sub sup sup Br sub 2 sub CH sub 3 sub CO CH sub 2 sub Br Br sup sup big Image with unknown copyright status removed Image Acetone Bromination.GIF In acidic solution, usually only one alpha hydrogen is replaced by a halogen, because each successive halogenation is slower that the first. The halogen decreases the basicity of the carbonyl oxygen, thus making protonation less likely. However, in basic solution successive halogenations are more rapid , because the halogen withdraws electrons by induction and makes remaining hydrogens more acidic. In the case of methyl ketone s, this results in what is called the haloform reaction . ref Organic Chemistry Fifth Edition, by Paula Yurkanis Bruice. Pearson Prentice Hall, Upper Saddle River, NJ, 2007 ref References reflist 2 Category Substitution reactions reaction stub es Halogenaci n de cetonas mk nl Ketonhalogenering pt Halogena o de cetona ... more details
chembox Watchedfields changed verifiedrevid 384074900 Name Methyl isopropyl ketone ImageFile MIK.png ImageSize 120px ImageName Methyl isopropyl ketone IUPACName 3 Methylbutan 2 one OtherNames Isopropyl methyl ketone, br Methyl isopropyl ketone Section1 Chembox Identifiers CASNo Ref cascite correct CAS CASNo 563 80 4 SMILES CC C C O C Section2 Chembox Properties Formula C sub 5 sub H sub 10 sub O MolarMass 86.13 g mol Density 0.803 0.805 g cm MeltingPtC 92 BoilingPt 93 95 C Solubility 6 g l 20 C Section7 Chembox Hazards FlashPt 1 C Autoignition 475 C Methyl isopropyl ketone is a highly flammable liquid ketone . Its formula is carbon C sub 5 sub hydrogen H sub 10 sub oxygen O . Two other ketones, which are isomers of methyl isopropyl ketone, are 2 Pentanone 2 pentanone and 3 pentanone . It is primarily used as a solvent. ref http www.cdc.gov niosh npg npgd0424.html NIOSH Pocket Guide to Chemical Hazards ref ref http www.cdc.gov niosh ipcsneng neng0922.html International Chemical Safety Card ref ref http www.cdc.gov niosh topics organsolv Organic solvents ref References references Category Ketones Category Ketone solvents ketone stub el es Metilisopropilcetona fa nl 3 methyl 2 butanon ... more details
chembox verifiedrevid 399922826 Name Ethyl isopropyl ketone ImageFile Ethyl isopropyl ketone.png ImageSize 200px ImageName Ethyl isopropyl ketone IUPACName 2 Methylpentan 3 one OtherNames Ethyl isopropyl ketone Section1 Chembox Identifiers ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 10791 PubChem 11265 InChI 1 C6H12O c1 4 6 7 5 2 3 h5H,4H2,1 3H3 InChIKey HYTRYEXINDDXJK UHFFFAOYAO SMILES1 O C CC C C C StdInChI Ref stdinchicite correct chemspider StdInChI 1S C6H12O c1 4 6 7 5 2 3 h5H,4H2,1 3H3 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey HYTRYEXINDDXJK UHFFFAOYSA N CASNo 565 69 5 SMILES CC C C O CC Section2 Chembox Properties Formula C sub 6 sub H sub 12 sub O MolarMass 100.16 g mol Density 0.811 g cm sup 3 sup ref name SA cite web url http www.sigmaaldrich.com catalog product aldrich 108707?lang en®ion US title 2 Methyl 3 pentanone publisher Sigma Aldrich ref MeltingPt 25 C BoilingPtC 113 Boiling notes ref name SA Ethyl isopropyl ketone , or 2 methyl 3 pentanone, is an aliphatic ketone with used as a reagent in organic chemistry and as a solvent . Its fully fluorocarbon fluorinated analog is known as Novec 1230 and is used in gaseous fire suppression . References references Category Ketones Category Ketone solvents ketone stub fa ... more details
Chembox verifiedrevid 433525327 Name Methyl isobutyl ketone ImageFile MIBK.png ImageSize ImageName Methyl isobutyl ketone IUPACName 4 Methylpentan 2 one OtherNames Isopropylacetone, Hexone, Isobutyl methyl ketone, 4 Methylpentan 2 one, 4 methyl 2 pentanone, 4 methylpentan 2 one, 2 methyl 4 pentanone, 2 methylpropyl methyl ketone, 4 methyl 2 oxopentane, MIK, isobutylmethyl ketone, MIBK, isohexanone Section1 Chembox Identifiers SMILES CC C CC O C CASNo Ref cascite CASNo 108 10 1 RTECS SA9275000 KEGG Ref keggcite correct kegg KEGG C19263 Section2 Chembox Properties Formula C sub 6 sub H sub 12 sub O MolarMass 100.16 g mol Appearance colorless liquid Density 0.802 g mL, liquid Solubility 1.91 g 100 mL 20 C MeltingPtC 84.7 BoilingPtCL 117 BoilingPtCH 118 pKa Viscosity 0.58 Poise cP at 20.0 C RefractIndex 1.3958 Section3 Chembox Structure Dipole 4.2 Debye D Section7 Chembox Hazards ExternalMSDS EUClass Flammable F br Harmful Xn NFPA H 2 NFPA F 3 NFPA R RPhrases R11 , R20 , R36 37 , R66 SPhrases S2 , S9 , S16 , S29 FlashPt 14 C Autoignition 449 C Section8 Chembox Related Function ketone s OtherFunctn Methyl isopropyl ketone br 2 Pentanone br Diisobutyl ketone OtherCpds 2 Methylpentan 4 ol Methyl isobutyl ketone MIBK is the organic compound with the formula CH sub 3 sub sub 2 sub CHCH sub 2 sub C O CH sub 3 sub . This colourless liquid, a ketone , is widely used as a solvent . Production Methyl isobutyl ketone is manufactured from acetone via a three step process. Firstly acetone undergoes ... the other common ketone solvents, acetone and butanone MEK , MIBK has quite low solubility in water ... mines, to determine the levels of those dissolved metals. Diisobutyl ketone DIBK , a related lipophilic ketone, is also used for this purpose. Methyl isobutyl ketone is also used as a denaturing agent ... National Pollutant Inventory Methyl isobutyl ketone fact sheet http www.cdc.gov niosh npg npgd0326.html ... Ketone solvents de Methylisobutylketon fa fr M thylisobutylc tone it Metilisobutilchetone ... more details
The Blaise ketone synthesis is the chemical reaction of acid chloride s with organozinc compound s to give ketone s. Ref Blaise1910 Ref Blaise1911 Image Blaise Ketone Synthesis SchemePNG.png center 300px The Blaise ketone synthesis The reaction also works with organocuprate s. Ref Posner1976 Ref Fujisawa1988 Reviews have been written. Ref Cason1947 Ref Shirley1954 Variations Blaise Maire reaction The Blaise Maire reaction is the Blaise ketone synthesis using hydroxy acid chlorides to give hydroxyketones, which are converted into , unsaturated ketones using sulfuric acid . Ref Blaise1907 References Note Blaise1910 Blaise, E. E. Koehler, A. Bull. Soc. Chim. 1910 , 7 , 215. Note Blaise1911 Blaise, E. E. Bull. Soc. Chim. 1911 , 9 , 1. Note Posner1976 Posner, G. H. Whitten, C. E. Organic Syntheses , Coll. Vol. 6, p.248 1988 Vol. 55, p.122 1976 . http www.orgsyn.org orgsyn prep.asp?prep cv6p0248 Article Note Fujisawa1988 Fujisawa, T. Sato, T. Organic Syntheses , Coll. Vol. 8, p.441 1993 Vol. 66, p.116 1988 . http www.orgsyn.org orgsyn prep.asp?prep cv8p0441 Article Note Cason1947 Cason, J. Chem. Rev. 1947 , 40 , 17. Review Note Shirley1954 Shirley, D. A. Org. React. 1954 , 8 , 29. Review Note Blaise1907 Blaise, E. E. Maire, M. Compt. Rend. 1907 , 145 , 73. See also Blaise reaction Category Addition reactions Category Carbon carbon bond forming reactions reaction stub Category Name reactions es S ntesis de cetonas de Blaise nl Blaise ketonsynthese zh Blaise ... more details
chembox Watchedfields changed verifiedrevid 444013203 Name Methyl vinyl ketone Reference ref Merck Index , 11th Edition, 6052 . ref ImageFile Ref chemboximage correct ?? ImageFile MVK 2D skeletal.png ImageSize 150px ImageName Skeletal formula ImageFile1 Methyl vinyl ketone 3D balls.png ImageName1 Ball and stick model IUPACName Butenone the only way to put together a molecule with this name in the way shown, so there is no need for numbers OtherNames Butenone, br Methyl vinyl ketone br MVK br Methylene acetone Section1 Chembox Identifiers ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 6322 PubChem 6570 InChI 1 C4H6O c1 3 4 2 5 h3H,1H2,2H3 InChIKey FUSUHKVFWTUUBE UHFFFAOYAV StdInChI Ref stdinchicite correct chemspider StdInChI 1S C4H6O c1 3 4 2 5 h3H,1H2,2H3 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey FUSUHKVFWTUUBE UHFFFAOYSA N CASNo 78 94 4 CASNo Ref cascite correct CAS ChEBI Ref ebicite correct EBI ChEBI 48058 SMILES CC O C C Section2 Chembox Properties Formula C sub 4 sub H sub 6 sub O MolarMass 70.09 g mol Density 0.8407 g cm sup 3 sup MeltingPt 7 C BoilingPt 81.4 C Section7 Chembox Hazards NFPA H 4 NFPA F 3 NFPA R 2 Methyl vinyl ketone MVK is a reactive organic compound classified as an enone . It is a colorless, flammable, highly toxic liquid with a pungent odor. It is easily soluble in water, methanol , ethanol , acetone , and acetic acid . MVK has been prepared industrially by the condensation reaction condensation of acetone and formaldehyde , followed by dehydration reaction dehydration . MVK can act as an alkylating agent because it is an effective Michael reaction Michael acceptor . Its alkylating ability is both the source of its high toxicity and the feature that makes it a useful intermediate in organic synthesis . MVK ... 22 NJ Hazardous Substance Factsheet for methyl vinyl ketone http www.mathesontrigas.com pdfs msds MAT14770.pdf search 22MSDS 20 22methyl 20vinyl 20ketone 22 22 MSDS for methyl vinyl ketone Category ... more details
ketone were fueled by the search for alternative methods for the industrial synthesis of contraceptive .... Int. Ed. 1977 , 16 , 506 513. ref Wieland Miescher ketone contains the AB ring structure of steroids .... Chem. Soc. 1996 , 118 , 4711 4712. ref The original Wieland Miescher ketone is racemic and prepared in a Robinson annulation of 2 methyl 1,3 cyclohexanedione and methyl vinyl ketone . The intermediate ... ketone Synthesis 500px This reaction appeared in 1971 in the patent literature by Z. G. Hajos ... Link ref References Reflist DEFAULTSORT Wieland Miescher Ketone Category Ketones de Wieland ... more details
Chembox verifiedrevid 424660757 ImageFile MEKOstr .png ImageSize ImageAlt IUPACName PIN OtherNames MEKO Section1 Chembox Identifiers CASNo Ref cascite correct ?? CASNo PubChem SMILES Section2 Chembox Properties Formula C sub 4 sub H sub 9 sub NO MolarMass Appearance colourless liquid Density 0.923 g cm sup 3 sup MeltingPt 15 C BoilingPt 152 C Solubility Section3 Chembox Hazards MainHazards FlashPt Autoignition Methylethyl ketone oxime is the organic compound with the formula C sub 2 sub H sub 5 sub C NOH CH sub 3 sub . This colourless liquid is the oxime derivative of methyl ethyl ketone . MEKO, as it is called in the paint industry, is used to suppress skinning of paints the formation of a skin on paint before it is used. MEKO functions by coordination chemistry binding the drying agent s, metal salts that catalyze the oxidative crosslinking of drying oil s. Once the paint is applied to a surface, MEKO evaporates, thereby allowing the drying process to proceed. Other antiskinning agents have been used, including phenol based antioxidant s, but these tend to yellow the paint. ref J. Bielman Antiskinning Agents in Additives for Coatings J. H. Bielman, Ed. Wiley VCH, 2000, Weinheim. ISBN 3527297855. ref References Reflist Category Oximes Category Art materials Category Painting materials fa nl 2 butanonoxime ... more details
Ethyl Ketone and Hydrogen Peroxide journal Journal of the American Chemical Society volume 81 pages ... 2006 transatlantic aircraft plot . Notes reflist See also Methyl ethyl ketone MEK External ... more details
chembox verifiedrevid 402050217 ImageFile Tosyl phenylalanyl chloromethyl ketone.PNG ImageSize IUPACName OtherNames Section1 Chembox Identifiers CASNo 402 71 1 PubChem 439647 SMILES MeSHName Tosylphenylalanyl Chloromethyl Ketone Section2 Chembox Properties Formula C sub 17 sub H sub 18 sub ClNO sub 3 sub S MolarMass 351.848 g mol Appearance Density MeltingPt BoilingPt Section3 Chembox Hazards Solubility MainHazards FlashPt Autoignition Refimprove date September 2006 Tosyl phenylalanyl chloromethyl ketone TPCK is a protease inhibitor biology protease inhibitor . Its structural formula is 1 Chlorine chloro 3 tosyl amido 4 phenyl 2 butanone . Uses TPCK is the irreversible inhibitor of chymotrypsin . Also inhibits some cysteine protease s such as caspase , papain , bromelain or ficin . It does not inhibit trypsin or zymogens . TPCK is observed covalently bound in the active site of Caspase 3 in the crystal structure of the complex solved in 2010 ref http scripts.iucr.org cgi bin paper?S1744309111018604 Ganesan et al . Acta Cryst F v67 p 842. PDB Entry PDBe 2xyg ref . The chloromethyl group reacts with the active site cysteine to form a covalent bond with the loss of the chlorine. TPCK is chosen for the chemical labelling of active histidine in enzyme analysis. The phenylalanine moiety is bound to the enzyme because of specificity for aromatic amino acid residues at the active site as in chymotrypsin , in which it binds to the Sequence of proteases chymotrypsin A trypsin elastase Histidine 57 residue in the active site . ref name isbn0 534 39499 x Cite book author Farrell, Shawn O. Campbell, Mary K. title Biochemistry publisher Thomson Brooks Cole location Australia year 2006 isbn 0 534 39499 x oclc doi page 160 ref References Reflist Biochem stub Category Protease inhibitors Category Sulfonamides ... more details
good article The Weinreb ketone synthesis is a chemical reaction used in organic chemistry to make carbon carbon bonds . It was discovered in 1981 by Steven M. Weinreb and Steven Nahm as a method to synthesize ketones . ref name Weinreb citation author Nahm, S. Weinreb, S. M. journal Tetrahedron Letters year 1981 title N methoxy n methylamides as effective acylating agents volume 22 pages 3815 doi 10.1016 s0040 4039 01 91316 4 ref The original reaction involved two subsequent nucleophilic acyl substitution s the conversion of an acid chloride into an N,O dimethylhydroxyamide, known as a Weinreb amide , and subsequent treatment of this species with an organometallic reagent such as a Grignard reaction Grignard reagent or organolithium reagent . Nahm and Weinreb also reported the synthesis of aldehyde s by redox reduction of the amide with an excess of Lithium aluminium hydride lithium aluminum hydride See amide reduction . File WeinrebAmideIntro.png center 500px The Weinreb ketone synthesis The major advantage of this method over addition of organometallic reagents to more typical acyl compounds is that it avoids the common problem of over addition. For these latter reactions, two Equivalent chemistry equivalents of the incoming group add to form an alcohol rather than a ketone or aldehyde ... year 2005 volume 7 pages 5573 doi 10.1021 ol052039k ref See Weinreb ketone synthesis Scope Scope below ... to form Weinreb amides Scope The standard conditions for the Weinreb ketone synthesis .... This yields an N methyl N methoxy enamine that converts to the corresponding ketone or aldehyde ... Conrad, K. Hsiao, Y. Miller, R. title A practical one pot process for amino aryl ketone synthesis ... to the corresponding enantioenriched aldehyde or ketone. ref name Davies citation author Davies ... functionality See also N,O Dimethylhydroxylamine Ketone Synthesis Ketone Synthesis References Reflist 2 DEFAULTSORT Weinreb Ketone Synthesis Category Carbon carbon bond forming reactions Category Substitution ... more details
Hexanone may refer to any of the following organic compound s containing six carbons and a ketone functional group 2 Hexanone 3 Hexanone Cyclohexanone disamb es Hexanona ... more details
enzyme Name linamarin synthase EC number 2.4.1.63 CAS number 37277 68 2 IUBMB EC number 2 4 1 63 GO code 0050057 image width caption In enzymology , a linamarin synthase EC number 2.4.1.63 is an enzyme that catalysis catalyzes the chemical reaction UDP glucose 2 hydroxy 2 methylpropanenitrile math rightleftharpoons math UDP linamarin Thus, the two substrate biochemistry substrates of this enzyme are UDP glucose and 2 hydroxy 2 methylpropanenitrile , whereas its two product chemistry products are uridine diphosphate UDP and linamarin . This enzyme belongs to the family of glycosyltransferase s, specifically the hexosyltransferases. The systematic name of this enzyme class is UDP glucose 2 hydroxy 2 methylpropanenitrile beta D glucosyltransferase . Other names in common use include uridine diphosphoglucose ketone glucosyltransferase , uridine diphosphate glucose ketone cyanohydrin , beta glucosyltransferase , UDP glucose ketone cyanohydrin glucosyltransferase , UDP glucose ketone cyanohydrin beta glucosyltransferase , and uridine diphosphoglucose ketone cyanohydrin glucosyltransferase . References reflist 1 cite journal author Hahlbrock K, Conn EE date 1970 title The biosynthesis of cyanogenic glycosides in higher plants. I Purification and properties of a uridine diphosphate glucose ketone cyanohydrin beta glucosyltransferase from Linum usitatissimum L journal J. Biol. Chem. volume 245 pages 917&ndash 22 pmid 5417265 issue 5 enzyme stub Category EC 2.4.1 Category Enzymes of unknown structure it Linamarina sintasi ... more details
Lacquer Thinner is usually a mixture of solvents able to dissolve a number of different resins or plastics used in modern Lacquer . Traditional Lacquerware is not based on solvent dissolved resins at all. Shellac is a lacquer with an alcohol as solvent. Twentieth century lacquer thinners frequently contained alkyl ester s like butyl acetate butyl or amyl acetate , ketone s like acetone or methyl ethyl ketone , aromatic hydrocarbons like toluene , ether s such as gylcol cellosolve s, and or alcohol s. Category Chemical substances ... more details
Pentanone may refer to any of three organic compound s containing five carbons and a ketone functional group. There are two isomeric linear pentanones 2 Pentanone 3 Pentanone There is one cyclic pentanone Cyclopentanone disambig es Pentanona ... more details
The abbreviation or acronym TPCK has several different meanings Tosyl phenylalanyl chloromethyl ketone , a Protease inhibitor pharmacology protease inhibitor . Technological Pedagogical Content Knowledge , also known as TPACK, a form or knowledge required for effective technology integration in teaching. disambig ... more details
Aminoketones are compound s containing both a ketone functional group group and an amine . An example is the phenethylamine stimulant cathinone . References Reflist 2 Unreferenced date December 2009 organic compound stub Category Organic compounds lv Aminoketoni pt Aminocetona ... more details
Unreferenced date December 2009 In chemistry , the term geminal from Latin gemini twins refers to the relationship between two functional group s that are attached to the same atom. The prefix gem is applied to a chemical name to denote this relationship, as in a gem dibromide. The following example shows the conversion of a cyclohexyl methyl ketone to a gem dichloride through a reaction with phosphorus pentachloride. This gem dichloride can then be used to synthesize an alkyne . Image cyclohexyl methyl ketone to gem dichloride.png center 600px cyclohexyl methyl ketone to gem dichloride The term is often used in NMR spectroscopy , as the relationship between atoms is important in determining the size of coupling constants. The related term vicinal chemistry vicinal refers to the relationship between two functional groups that are attached to adjacent atoms. See also vicinal chemistry Vicinal Category Chemical nomenclature de Geminal es Geminal nl Geminaal ja pt Geminal sr Geminalni zh ... more details
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