Rhodium-catalysed decomposition of δ,ε-unsaturated ββ-difluoro-α-diazo esters, the direct formation of bicyclo[2.1.0]pentane ring systems via intramolecular cyclopropanation
作者:Guo-qiang Shi、Wei-ling Cai
DOI:10.1039/p19960002337
日期:——
Several δ,ε-unsaturated β,β-difluoro-α-diazo esters, prepared from the corresponding α-keto esters, undergo rhodium-catalysed intramolecular cyclopropanation reaction leading to the unprecedented formation of bicyclo[2.1.0]pentane ring systems.
由相应的α-酮基酯制备的几种δ,μ-不饱和β,β-二氟-α-重氮酯经历铑催化的分子内环丙烷化反应,从而导致双环[2.1.0]戊烷环系统的空前形成。