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 a organic compound compound with the structure RC O R ... is the simplest example of a ketone, and in fact the word ketone derives its name from Aketon , an old German word for acetone. ref http www.etymonline.com index.php?term ketone Online Etymology ... acid s, ester s and amide s, which have a carbonyl group bonded to a hetero atom . A ketone ... propanone or propan 2 one instead of acetone, the simplest ketone carbon C hydrogen H sub 3 sub ... nomenclature for a ketone functional group . Other prefixes, however, are also used. For some common chemicals mainly in biochemistry , keto or oxo is the term used to describe the ketone functional ... scent and tetracycline , an antibiotic. The ketone carbon is often described as sp sup 2 sup .... Acetophenone C sub 6 sub H sub 5 sub C O CH sub 3 sub is an unsymmetrical ketone. In the area of stereochemistry ... used member of this class of compounds 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 .... Larger derivatives exist. Cyclohexanone, a symmetrical cyclic ketone, is an important intermediate ... ketone that is the precursor to other polymers. Muscone , 3 methylpentadecanone, is an animal ... 1 sup H NMR spectroscopy is, in general, not useful for establishing the presence of a ketone, Carbon ... gives a ketone. This reaction always produces a ketone, even with a terminal alkyne. From Weinreb ketone synthesis Weinreb Amides using stoichiometric organometallic reagents. Aromatic ketones ... hydride gives a metal alkoxide salt, hydrolysis of which gives the alcohol , an example of ketone ... reaction With heavy water to give a deuteration deuterated ketone Fragmentation in photochemical ... are ketones or ketone bodies generated from carbohydrate s, fatty acid s, and amino acid s in humans ... 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 ... more details
chembox 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 ... more details
chembox 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 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 Berichte der deutschen chemischen Gesellschaft volume 9 issue pages 716 718 year 1876 url doi 10.1002 cber.187600901218 ref using the Friedel Crafts acylation of dimethylaniline ... 6 sub H sub 4 sub sub 2 sub CO, also a precursor to dyes, is prepared similarly. Uses Michler s ketone ... violet . Condensation of Michler s ketone with N phenyl 1 naphthylamine gives the dye Victoria ... for ballpoint pens. Michler 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 ... high to quench the photoreaction of Michler s ketone with itself. Specifically Michler s 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 ... ketone bodies are acetone , acetoacetic acid , and beta hydroxybutyric acid , ref name dmrr15 cite journal author Lori Laffel title Ketone bodies a review of physiology, pathophysiology and application ... year 1999 ref although beta hydroxybutyric acid is not technically a ketone but a carboxylic acid . Other ketone bodies such as beta ketopentanoate and beta hydroxypentanoate may be created as a result of the metabolism of synthetic 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 ... the citric acid cycle . The heart gets little energy from ketone bodies except under special circumstances ... energy from ketone bodies when glucose is less available e.g., when fasting . In the event of low blood sugar blood glucose , most other tissues have additional energy sources besides ketone bodies ... for 3 days, the brain gets 30 of its energy from ketone bodies. ref http www.ncbi.nlm.nih.gov pubmed ... 2010 Production Image Acetyl CoA 2D.png thumb Acetyl CoA Ketone bodies are produced from acetyl ... ketone bodies. Acetone cannot be converted back to acetyl CoA it is instead metabolized e.g. ... ketogenesis , and this is necessary in small amounts. However, when excess ketone bodies accumulate ... self test for the presence of ketones using blood or urine testing kits. When even larger amounts of ketone ... ic, and, if levels of these ketone bodies are too high, the pH of the blood drops, resulting in ketoacidosis ... . See also Fatty acid metabolism Ketogenesis Ketosis Ketone s References reflist External ... Formation of Ketone Bodies MeshName Ketone Bodies Cholesterol and steroid intermediates DEFAULTSORT Ketone Bodies Category Metabolism ca Cossos cet nics cs Ketol tky de Ketok rper es Cuerpo cet nico ... 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 ... raspberry ketone on generally recognized as safe GRAS status. ref Opdyke, D. L. J. 4 p Hydroxyphenyl 2 butanone. Fd. Cosmet. Toxicol. 1978, 16, 781 782. ref In plants, raspberry ketone is synthesized ... 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 ... and methoxy aromatics with 4 hydroxybutan 2 one to produce raspberry ketone and some pharmaceutically ... , 4 hydroxybenzaldehyde can form the , unsaturated ketone. This then goes through catalytic hydrogenation to produce raspberry ketone. This method produces a 99 yield. ref cite journal doi 10.1007 s00897960034a author Smith, L. R. title Rheosmin Raspberry Ketone and Zingerone, and Their Preparation ... 1 issue 3 pages 1 18 ref When given to mice in high doses up to 2 of food intake , raspberry ketone ... Morimoto C, Satoh Y, Hara M, Inoue S, Tsujita T, Okuda H title Anti obese action of raspberry ketone ... more details
Chembox verifiedrevid 401986154 ImageFile 1,3 Diphenylacetone.svg ImageName Skeletal formula ImageFile1 Dibenzyl ketone 3D balls.png ImageSize1 220 ImageName1 Ball and stick model IUPACName 1,3 diphenylpropan 2 one OtherNames Section1 Chembox Identifiers InChIKey YFKBXYGUSOXJGS UHFFFAOYAS StdInChI Ref stdinchicite correct chemspider StdInChI 1S C15H14O c16 15 11 13 7 3 1 4 8 13 12 14 9 5 2 6 10 14 h1 10H,11 12H2 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey YFKBXYGUSOXJGS UHFFFAOYSA N CASNo 102 04 5 CASNo Ref cascite correct CAS EINECS 203 000 0 PubChem 7593 ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 21105887 SMILES O C Cc1ccccc1 Cc2ccccc2 InChI 1 C15H14O c16 15 11 13 7 3 1 4 8 13 12 14 9 5 2 6 10 14 h1 10H,11 12H2 Section2 Chembox Properties C 15 H 14 O 1 MolarMass 210.27 Appearance Density 1.069 g cm sup 3 sup MeltingPt 32 34 C BoilingPt 330 C Solubility Section3 Chembox Hazards MainHazards FlashPt Autoignition Dibenzyl ketone , or 1,3 diphenylacetone , is an organic compound composed of two benzyl groups attached to a central carbonyl group. This results in the central carbonyl carbon atom being electrophilic and the two adjacent carbon atoms slightly nucleophilic. For this reason, dibenzyl ketone is frequently used in an aldol condensation reaction with benzil a dicarbonyl and base to create tetraphenylcyclopentadienone . Category Ketones ketone stub ... 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 pt Halogena o de cetona ... more details
chembox verifiedrevid 268927254 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 kethone Section1 Chembox Identifiers CASNo Ref cascite 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 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 MeltingPt 25 C BoilingPt 113 C 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 unreferenced date September 2007 references Category Ketones Category Ketone solvents ketone stub ... more details
chembox verifiedrevid 370511059 Name Methyl isobutyl ketone ImageFile MIBK.png ImageSize 120px 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 Section2 Chembox Properties Formula C sub 6 sub H sub 12 sub O MolarMass 100.2 g mol Appearance colorless liquid Density 0.802 g ml, liquid Solubility 1.91 g 100 ml 20 C MeltingPt &minus 84.7 C BoilingPt 117 118 C 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 an aldol condensation to give diacetone ... date September 2007 Solvent and niche applications Unlike the other common ketone solvents, acetone ... metals. Diisobutyl ketone DIBK , a related lipophilic ketone, is also used for this purpose. Methyl isobutyl ketone is also used as a denaturing agent for denatured alcohol . lots of things are, so ... Inventory Methyl isobutyl ketone fact sheet http www.cdc.gov niosh npg npgd0326.html NIOSH Pocket Guide to Chemical Hazards Category Hazardous air pollutants Category Ketones Category Ketone solvents ... 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 verifiedrevid 402391832 Name Methyl vinyl ketone Reference ref Merck Index , 11th Edition, 6052 . ref 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 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 will polymerization polymerize spontaneously, and is used in the manufacture of plastic polymer s. It is also ... 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 Alkenes Category ... more details
Chembox ImageFile MEKOstr .png ImageSize ImageAlt IUPACName PIN OtherNames MEKO Section1 Chembox Identifiers 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 Reference references Category Oximes Category Art materials Category Painting materials ... 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 cite 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 ... 7 pages 5573 doi 10.1021 ol052039k ref See Weinreb ketone synthesis Scope Scope below Mechanism Weinreb ... Scope The standard conditions for the Weinreb ketone synthesis are known to tolerate a wide variety ... enamine that converts to the corresponding ketone or aldehyde upon hydrolytic workup. ref name Wittig ... A practical one pot process for amino aryl ketone synthesis journal Tetrahedron Letters year 2005 ... enolate alkylation followed by facile cleavage to the corresponding enantioenriched aldehyde or ketone ... 500px Davies Auxiliary with Weinreb like functionality See also N,O Dimethylhydroxylamine Ketone Synthesis Ketone Synthesis References Reflist 2 DEFAULTSORT Weinreb Ketone Synthesis Category Carbon ... more details
chembox 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 papain , bromelain or ficin . It does not inhibit trypsin or zymogens . 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
advances in total synthesis methods starting from Wieland Miescher ketone were fueled by the search ... Miescher ketone contains the AB ring structure of steroids and is for this reason an attractive ... 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 alcohol is not isolated. ref Wieland ... ref Image Wieland MiescherketoneSynthesis.svg Wieland Miescher ketone Synthesis 500px This reaction ... Ketone Category Ketones de Wieland Miescher Keton hu Wieland Miescher keton zh ... more details
Summary author Samir Quintiliano This image summarizes the preparation of a ketal from a ketone and an alcohol Licensing PD self date October 2006 ... more details
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