A new and facile perhydroazulene formation : the total synthesis of the carotane (+)-daucene
作者:Frans Audenaert、Denis De Keukeleire、Maurits Vandewalle
DOI:10.1016/s0040-4020(01)87740-1
日期:1987.1
Thermolysis of the 2,5-bis(trimethylsiloxy)tricyclo|4.4.0.02,5| decan-7-ones leads to perhydroazulenes by a transannular reaction involving an oxygen to oxygen migration of a silyl group in the intermediate cyclodecadienones. This 3-step transformation of a 2-cyclohexenone into a perhydroazulene is illustrated by the synthesis of the carotane (+)-daucene ().