Lipase-catalyzed resolution of racemic 2-alkyl substituted 1-alkanols
作者:Stefan Barth、Franz Effenberger
DOI:10.1016/s0957-4166(00)80120-2
日期:1993.5
(R)-2-alkyl-1-alkanols (R)-1 with high optical purities were obtained by lipase-catalyzed esterification of the racemic substrates (R,S)-1 with vinyl acetate in dichloromethane. The alcohols (R)-1 were oxidized without racemization to the corresponding carboxylic acids (R)-4. The enriched (S)-acetates (S)-3 either were saponified to the alcohols (S)-1 which are substrates for a second lipase-catalyzed transesterification to give (S)-1 in high optical purity or were racemized and applied once again in the kinetic resolution to prepare (R)-1.