MultipleWagner-Meerwein Shift. Biogenesis-like conversion of (�)-?7,8-Protoilludene to (�)-Hirsutene and related reactions
作者:Kiyoharu Hayano、Yasufumi Ohfune、Haruhisa Shirahama、Takeshi Matsumoto
DOI:10.1002/hlca.19810640511
日期:1981.7.22
Experimental details are given for the previous preliminary reports concerning conversion of protoilludane (28) to hirsutene (3) and related reactions. Treatment of each of the bicyclic analogs 9, 10, 12 and 13 of the former compound afforded a hirsutene analog 8, through multiple 1,2-shift, together with other products. Treatment of a mixture of α- and β-protoilludene -epoxides (29α and 29β) with
对于先前的初步报告,提供了实验细节,涉及到原戊二烷(28)转化为hirsutene(3)以及相关的反应。每个双环类似物的治疗9,10,12和13,得到一个模拟hirsutene前者化合物8,通过多个1,2-移,与其它产品一起。在己烷中用BF 3 ·Et 2 O处理α-和β-原戊二烯-环氧化合物(29α和29β)的混合物,得到hirsutane衍生物30和32。化合物30反过来,它被转化为内-hirsutene 36,后者已经被异构化为hirsutene(3)。