作者:J. Gabriel Garcia、Bethzaida Ramos、Lawrence M. Pratt、Augusto Rodríguez
DOI:10.1016/0040-4039(95)01558-2
日期:1995.10
Enyne [3]cumlenals have been shown to undergo a Bergman cyclization or an intramolecular [2+2] cycloaddition depending on the nature of substituents on the yne carbon. A hydrogen substituted [3]cumulenal is cleanly converted to a naphthalene product while a trimethylsilyl substituted substrate produces a cyclobutene product.
根据炔碳上取代基的性质,烯炔[3]缩醛已显示出发生Bergman环化或分子内[2 + 2]环加成反应。氢取代的[3]累积物可干净地转化为萘产物,而三甲基甲硅烷基取代的底物则可生成环丁烯产物。