ALPHA-HYDROXYKETONESCompounds of the Formula (I) wherein x is an integer from 1-4; p is an integer from 1-3; q is an integer from 0-3; Ar is phenyl, naphthyl, anthryl or phenanthryl each of which optionally is substituted by one or more Cl, CN, OR, C-Calkenyl or C-Calkyl ...
A reliable method for the one-step direct deoxygenation of alpha-hydroxy ketones has been developed using a silyl lithium reagent and acetic anhydride. The method is metal-catalyst-free and does not require prefunctionalization of the hydroxy group prior to its removal. Deoxygenation of different ...
专利名称：PRODUCTION OF ALPHA HYDROXY KETONES VIA CARBENE CATALYZED POLE REVERSAL REACTION OF ALDEHYDES 发明人：JACKSTELL, RALF,JOVEL, IRINA,BELLER,MATTHIAS,HATELEY, MARTIN,WECKBECKER,CHRISTOPH,HUTHMACHER, KLAUS 申请号：EP07787858.5 申请日：20070724 公开号：EP2051955A1 公开日：20090429 专利内容由知识...
There is a need for cheap and simple methods to destroy recalcitrant pollutants such as dyes in waste water. It is shown that the radicals produced from the UV A and B photolysis of alpha-hydroxy ketones are capable of completely bleaching a wide range of azo dyes (Orange II, Amaranth, Ev...
Electron-Transfer Reactions of Aromatic α,β-Epoxy Ketones: Factors That Govern Selective Conversion to β-Diketones and β-Hydroxy Ketones Toshiaki.Electron-Transfer Reactions of Aromatic alpha,beta-Epoxy Ketones: Factors That Govern Selective Conversion to beta-Diketones and beta-Hydroxy Ketones....
N-(9-phenylfluoren-9-yl)-.alpha.-amino ketones and N-(9-phenylfluoren-9-yl)-.alpha.-amino aldehydes as chiral educts for the synthesis of optically pure 4-alkyl-3-hydroxy-2-amino acids. Synthesis of the C-9 amino acid MeBmt present in cy... Reaction of the oxazolidinone (I) deri...
The direct conversion of alpha-hydroxy ketones and alpha-keto oximes into quinoxaline derivatives in the presence of a catalytic amount of ceric ammonium nitrate via metal-catalyzed aerobic oxidation followed by in situ trapping with aromatic 1,2-diamines in water as a green and efficient reaction...
Hashiyama, T.; K. Morikawa and K. B. Sharpless. (1992). "Alpha-Hydroxy Ketones in High Enantiomeric Purity from Asymmetric Dihydroxylation of Enol Ethers." Journal of Organic Chemistry, 57(19), 5067-5068.Hashiyama, T., Morikawa, K., Sharpless, K.B. (1992) J. Org. Chem. 57: pp....
The present invention relates to multi-phase liquid reaction medium containing the carboxylic acid a- hydroxyketone chemical catalytic hydrogenation to the corresponding alcohols. 羧酸可以是简单的羧酸或羟基羧酸. Carboxylic acid may be a simple carboxylic acid or hydroxy carboxylic acid. 羧酸的存在既提高...
PREPARATION OF ENANTIOPURE VICINAL DIOLS AND ALPHA-HYDROXYKETONES FROM RACEMIC AND MESO-EPOXIDES BY TANDEM BIOCATALYSIS VIA ENANTIOSELECTIVE HYDROLYSIS AND OXIDATIONSThe invention provides methods of making enantiopure vicinal diols and 伪-hydroxyketones by biocatalysis with high yield, purity, and substrate...