Highly enantioselective preparation of tricyclo[4.4.0.05,7]decene derivatives via catalytic asymmetric intramolecular cyclopropanation reactions of α-diazo-β-keto esters
作者:Ryoji Ida、Masahisa Nakada
DOI:10.1016/j.tetlet.2007.05.046
日期:2007.7
The enantioselective preparation of the tricyclo[4.4.0.05,7]dec-2-ene derivatives via the catalytic asymmetric intramolecular cyclopropanation (CAIMCP) reactions of α-diazo-β-keto esters with excellent ee (95–98% ee) is described. The chiral building blocks reported herein would be versatile intermediates for enantioselective natural products synthesis.
通过具有出色ee(95-98%ee)的α-重氮-β-酮酸酯的催化不对称分子内环丙烷化(CAIMCP)反应,对三环[4.4.0.0 5,7 ] dec-2-ene衍生物的对映选择性为描述。本文报道的手性结构单元将是用于对映选择性天然产物合成的通用中间体。