Highly regioselective 8-endo-aryl radical cyclisation: a new synthetic route to decahydrodibenzo-[a,d]- and -[a,e]-cyclooctenols
作者:Keya Ghosh、Ajit K. Ghosh、Usha Ranjan Ghatak
DOI:10.1039/c39940000629
日期:——
A highly regioselective 8-endo-trig-aryl radical cyclisation of the vinylcyclohexanols 2a-c and allylcyclohexanols 6a-c with tri-n-butyltin hydride provides decahydrodibenzo-[a,e]- and -[a,d]-cyclooctenols 3a-c and 7a-c respectively, in moderate to good yields.
用氢化三正丁基锡对乙烯基环己醇 2a-c 和烯丙基环己醇 6a-c 进行高区域选择性 8-内向-三芳基自由基环化反应,可分别得到十氢二苯并-[a,e]-和-[a,d]-环辛烯醇 3a-c 和 7a-c,收率中等至良好。