The reaction of tetrachlorocyclopropene with trimethylsiloxydienes: a ‘one-pot’ Diels–Alder route to trichloro-tropones and -tropolones
作者:Martin G. Banwell、John H. Knight
DOI:10.1039/c39870001082
日期:——
The trimethylsiloxydienes (2), (7), (9), and (11), react with tetrachlorocyclopropene (3) at room temperature to give the troponoids (6), (8), (10a), and (12), respectively; bromine oxidation of compound (14), derived from Diels–Alderreaction of diene (13) with dienophile (3), gives α-tropolone (10a) in 76% yield.