Synthesis of ethynylidene cyclopentanes by a cyclisation catalyzed by the simultaneous presence of palladium (0) and copper (I)
作者:Didier Bouyssi、Geneviève Balme、Jacques Gore
DOI:10.1016/0040-4039(91)80215-r
日期:1991.11
Ethynylidene cyclopentanes can be formed in 35–71% yield from the reaction of the enolates of compounds such as δ-acetylenic malonates with 1-halogeno-1-alkynes. This reaction requires catalysis by both palladium (0) and copper (I) species.