Asymmetric synthesis of (−)-dehydro-<i>exo</i>-brevicomin with a photoisomerisation–intramolecular acetalisation sequence
作者:Shun Hirasawa、Tsuyoshi Masuda、Ken Mukai、Yusuke Miyoshi、Nobuhiro Kanomata
DOI:10.1039/d1ob00952d
日期:——
We herein report a novel, short asymmetric synthesis of (−)-dehydro-exo-brevicomin (DHB, 1), a sex pheromone isolated from house mice, in 44% overall yield, the highest yield reported so far, over eight steps from trans-3-hexen-1-ol (7). We successfully prepared the target molecule (−)-1 from spontaneous intramolecular acetalisation after the photoisomerisation of trans-enone 6, which generated the
我们在此报告了一种新颖的、短的不对称合成 (-)- dehydro- exo -brevicomin (DHB, 1 ),这是一种从家鼠中分离的性信息素,总产率为 44%,是迄今为止报道的最高产率,超过 8 个步骤反式-3-hexen-1-ol ( 7 )。我们成功地从反式-烯酮6的光异构化后的自发分子内缩醛化制备了目标分子 (-)- 1 ,这在原位产生了相应的顺-烯酮5,这可能是 DHB 的生物合成前体。