Copper-catalyzed coupling of 2-vinyl benzaldehydes with 3-alkenyl 2-bromocarbonyls for the rapid construction of 3,4-cyclopenta-1-tetralones
作者:Hui Zhu、Xingliang Nie、Qianwen Huang、Gangguo Zhu
DOI:10.1016/j.tetlet.2016.04.069
日期:2016.5
and highly diastereoselective method for the synthesis of 3,4-cyclopenta-1-tetralones has been realized via the copper-catalyzed coupling of 2-vinyl benzaldehydes with 3-alkenyl 2-bromocarbonyls. Subsequent reduction with l-selectride leads to the formation of benzannulated tricyclic alcohols, possessing four continuous stereogenic centers, in high yields with excellent diastereoselectivity.
通过2-乙烯基苯甲醛与3-烯基2-溴羰基的铜催化偶合,已经实现了一种简单,有效且高度非对映选择性的合成3,4-环戊-1-丁酮的方法。随后用1- selectride进行还原导致形成具有四个连续的立体异构中心的苯并环的三环醇,其具有高产率和优异的非对映选择性。