An enol-ester which is a monocarboxylic acid ester of the enol form of a ketone is converted into an ester of another and different monocarboxylic acid by heating said enol-ester to a reacting temperature in the presence of an acidic esterification catalyst with the anhydride of said other ...
合成了5种不同结构的β-二酮化合物,采用电喷雾质谱、紫外光谱、红外光谱和核磁共振法对其结构进行表征,并讨论了它们的酮式-烯醇式互变异构现象。2) Keto form enol form 酮式烯醇式3) ketone-enol tautomerism 酮式烯醇式互变4) enol pyruvic acid 烯醇式丙酮酸 例句>> 5...
Twitter Google Share on Facebook keto-enol tautomerism (redirected fromKeto-enol tautomer) keto-enol tautomerism (ˈkiːtəʊˈiːnɒl) n (Chemistry)chemtautomerism in which the tautomers are an enol and a keto form. The change occurs by transfer of a hydrogen atom within the ...
2)Keto form enol form酮式烯醇式 3)ketone-enol tautomerism酮式烯醇式互变 4)enol pyruvic acid烯醇式丙酮酸 英文短句/例句 1.phosphoenolpyruvate carboxylase磷酸烯醇式丙酮酸羟化酶 2.Phosphoenolpyruvate (PEP) is one of the two phosphoryl group donors in the synthesis of ATP during glycolysis.磷酸烯醇式...
The equilibrium constant for keto–enol tautomerism of 2-phenylacetylthiophene (2PAT) KT = [enol]/[ketone] has been determined as 3.55 × 10–7 (pKT 6.45) by combining rate constants for enolisation and ketonisation. The pKaKH for ionisation of 2PAT has been measured spectrophotometrically...
An organic compound with a hydroxide group adjacent to a double bond; varies with a ketone form in the effect known as enol-keto tautomerism; an example is the compound CH3COH=CHCO2C2H5.McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Compan...
Enolform(烯醇式，unstable)HO Resonance-stabilizedcationKetoform(酮式，Stable)Enolform(烯醇式，unstable)Ketoandenoltautomers(酮和烯醇互变异构体）Ketoandenoltautomers(酮和烯醇互变异构体）CH3OCHOHH2CCH(almost0%)OHOH3CCCHCCH3(76%)OCH3CCH3(99%)OH3CHO (-100%)OO OHH2CCCH3(0.00015%)CH3CCH2CCH3...
It was found that the association is practically nonpolar [ =1.18·10<sup>?0</sup> Cm (0.35 D)], and the enol formation in the ketone increases with the amount of the diluting nonpolar component. The modelling of the mixture was also made in the form of an A + A<sub>2</sub> +...
ChemInform Abstract: REACTIONS OF THE ENOL FORM OF α‐HYDROHEXAFLUOROISOPROPYLPENTAFLUOROETHYL KETONEsolvolysis, hydrolysishalogen compounds (acyclic compoundsDas Hexafluorpropyl-pentafluorethyl-keton (I) bildet mit Triethylamin das Ammoniumenolat (II), (T. Martini u.a., F. Fluor.doi:10.1002/chin...
(diazoketone), bis(1,3-diketone), and tetrahydrofuran (THF)yielded poly(β-keto enol ether) via a simultaneous insertionof a diazo-bearing carbon atom of bis(diazoketone) with N<sub>2</sub> elimination and a ring-opened THF into OH of an enol form of a 1,3-diketonemoiety of bis(1...