devised for racemic grandisol and lineatin, two important components of pheromonic blends. They are based on the utilisation of 1,4-dimethylbicyclo[3.2.0]hept-3-en-6-one as a pivotal intermediate. This compound, as well as other bicyclo[3.2.0]hept-3-en-6-ones, are now easily available by a practical bicyclization of the corresponding 3-hydroxy-6-alkenoic acids.
已经为外消旋的香兰
地松和利奈汀(信息素混合物的两个重要组成部分)设计了新的有效的立体选择性总合成物。它们基于利用1,4-二甲基双环[3.2.0] hept-3-en-6-one作为关键中间体。该化合物以及其他
双环[3.2.0]庚-3-烯-6-酮现在可以通过相应的3-羟基-6-链烯酸的实际双环化反应轻松获得。