(2-(4-methylpenta-2,3-dienyloxy)ethylidene)cyclopropane 在
tris-(dibenzylideneacetone)dipalladium(0) 2,4-di(tert-butyl)phenyl phosphate 作用下,
以
1,4-二氧六环 为溶剂,
反应 1.5h,
生成 (3aRS,6aRS)-hexahydro-4-methylene-6-(propan-2-ylidene)-1H-cyclopenta[c]furan 、 (3aRS,6aSR)-hexahydro-4-methylene-6-(propan-2-ylidene)-1H-cyclopenta[c]furan