Asymmetric syntheses of (1R,1′R,5′R,7′R) and (1S,1′R,5′R,7′R)-1-hydroxy-exo-brevicomin and a formal synthesis of (+)-exo-brevicomin
作者:D. Naveen Kumar、B. Venkateswara Rao
DOI:10.1016/j.tetlet.2003.12.157
日期:2004.3
Asymmetric syntheses of (1R,1′R,5′R,7′R) and (1S,1′R,5′R,7′R)-1-hydroxy-exo-brevicomins 1 and 2, volatiles of the male mountain pine beetle, and a formal synthesis of (+)-exo-brevicomin 3, a component of the attracting pheromone system of several bark beetles have been achieved. The key steps are Birch reduction of commercially available α-picoline, selective Wittig olefination, and Sharpless asymmetric
的不对称合成(1 - [R,1 ' - [R,5 ' - [R,7 ' - [R )和(1级小号,1 ' - [R,5 ' - [R,7 ' - [R)-1-羟基-外型-brevicomins 1和2,挥发性物质的雄性山松甲虫和(+)- exo -brevicomin 3的正式合成,这是几个树皮甲虫的吸引信息素系统的组成部分。关键步骤是降低市场上可买到的α-甲基吡啶的桦木,选择性Wittig烯烃化反应和Sharpless不对称二羟基化反应。