Enzymes in organic synthesis. 28. Reinvestigation of the horse liver alcohol dehydrogenase-catalyzed reductions of 2-alkylcyclohexanones.Identification of <i>cis</i>-alkylcyclohexanols as minor products
作者:J. Bryan Jones、Tetsuo Takemura
DOI:10.1139/v82-423
日期:1982.12.1
The formation of cis-2-alkylcyclohexanol products from horse liver alcohol dehydrogenase-catalyzed reductions of 2-alkylcyclohexanones has been detected for the first time. The cis-alcohols are minor (<4%) products, with the isomeric trans-products being heavily predominant under all conditions. cis-Alcohol production can be suppressed by suitable manipulation of the reaction conditions. Exclusive
Enzyme-mediated enantioface-differentiating hydrolysis of α-substituted sulfur-containing cyclic ketone enol esters
作者:Yasunari Kume、Hiromichi Ohta
DOI:10.1016/s0040-4039(00)60975-9
日期:1992.10
An enzymatic method for obtaining optically active α-substituted acyclic ketones is described. Pichia farinosa IAM 4682, a kind of yeast, hydrolyzed enolesters of sulfur-containing cyclic ketone with differentiation of the enantiotopic face. The resulting ketone could be easily desulfurized to afford the corresponding acyclic ketone without loss of its optical purity.