Chemoenzymatic synthesis of (E)-3,7-dimethyl-2-octene-1,8-diol isolated from the hairpencils of male danaus chrysippus (African monarch)
作者:Kunihiko Takabe、Nobuyuki Mase、Hiroya Hashimoto、Atsushi Tsuchiya、Takashi Ohbayashi、Hidemi Yoda
DOI:10.1016/s0960-894x(03)00352-4
日期:2003.6
The synthesis of (E)-3,7-dimethyl-2-octene-1,8-diol (1), which was isolated from the hairpencils of male Danaus chrysippus (African Monarch), was investigated. The key step of the sequence involves asymmetric desymmetrization of the 1,3-propanediol 7 with lipase, in which high enantio selectivity was observed. Total synthesis afforded (S)-1 in 12 steps and 26% overall yield from readily available geraniol. (C) 2003 Elsevier Science Ltd. All rights reserved.