Synthesis of the enantiomers of (3 Z ,9 Z )- cis -6,7-epoxy-3,9-octadecadiene, one of the major components of the sex pheromone of Ectropis oblique Prout
作者:Jie Yu、Feng Guo、Yun-Qiu Yang、Hui-Hui Gao、Ru-Yan Hou、Xiao-Chun Wan
DOI:10.1016/j.tetasy.2017.04.010
日期:2017.6
Both enantiomers of (3Z,9Z)-cis-6,7-epoxy-3,9-octadecadiene, one of which is the major component of the sex pheromone of Ectropis oblique Prout, were synthesized in 23% overall yield for the (-)-(6S,7R)-enantiomer and 18% yield for the (+)-(6R,7S)-isomer. This protocol uses a sequential regioselective ring-opening strategy and provides a convenient and reliable access to other structurally related insect sex pheromones. Preliminary biological studies revealed that (-)-(6S,7R)-2a was roughly as active as the natural pheromone, while racemic (+/-)-2 was less bioactive and (+)-2b was much less bioactive. (C) 2017 Elsevier Ltd. All rights reserved.