Palladium(0)-Catalyzed Domino Cyclization-Carbonylation of Alkenyl-Allenyl-Allylic Acetate
作者:Takayuki Doi、Masaru Takasaki、Sadahiro Nakanishi、Arata Yanagisawa、Keiji Yamamoto、Takashi Takahashi
DOI:10.1246/bcsj.71.2929
日期:1998.12
The Pd(0)-catalyzed domino cyclization-carbonylation of 5,8-dimethyl-5-(1,2-propadienyl)-2,8-nonadienyl acetate (7) was achieved at a rather higher temperature. The tricyclic and tetracyclic products, 15 and 16, were produced in 77% combined yield via five and six consecutive carbon–carbon bond formations, each step proceeding in > 94% yield.
Pd(0)催化的5,8-二甲基-5-(1,2-丙二烯基)-2,8-壬二烯醋酸酯(7)的多元环化-羰基化反应在较高温度下进行。三环和四环产物15和16的总产率为77%,通过五个和六个连续的碳–碳键形成,每个步骤的产率均超过94%。