Baker's yeast-mediated reduction of cyclohexanones containing a nitro or a sulfonyl group at C-3
作者:Rikuhei Tanikaga、Yukinori Obata、Ken-ichi Kawamoto
DOI:10.1016/s0957-4166(97)00370-4
日期:1997.9
Baker's yeast-mediated reduction of 3-(nitromethyl)-, 3-(phenylsulfonyl)-, and 3-[(phenylsulfonyl)methyl]-cyclohexanone la,c,a led to the delivery of a hydride to the re-face of the prochiral ketones to provide cyclohexanols (1S,3S)- and (1S,3R)-2a,c,d with high enantioselectivities in good yields. The remote nitro and sulfonyl groups, in contrast to alkyl and sulfenyl groups, may play an important role in binding to an enzyme. (C) 1997 Elsevier Science Ltd.