A method for synthesis of bicyclo[3.3.0]oct-1-en-3-ones from cyclobutanones with one-carbon ring expansion and its application to a formal synthesis of racemic 1-desoxyhypnophilin
作者:Hiroaki Kashima、Tadashi Kawashima、Daisuke Wakasugi、Tsuyoshi Satoh
DOI:10.1016/j.tet.2007.03.019
日期:2007.5
method for synthesis of 2-cyanobicyclo[3.3.0]oct-1-en-3-ones and 2-substituted bicyclo[3.3.0]oct-1-en-3-ones was developed by assembly of three components, cyclobutanones, chloromethyl p-tolyl sulfoxide, and nitriles, with one-carbon ring expansion of the cyclobutane ring. As an application of this method, a formal synthesis of 1-desoxyhypnophilin in racemic form was performed starting from 3,3-di(p
通过组装三组分环丁酮开发了一种合成2-氰基双环[3.3.0] oct-1-en-3-ones和2-取代的双环[3.3.0] oct-1-en-3-ones的方法,氯甲基对甲苯基亚砜和腈,具有环丁烷环的一碳环扩展。作为该方法的应用,从3,3-二(苯硫基甲基)环丁酮开始,以外消旋形式进行了1-脱氧hypnophilin的正式合成。