摘要:
Reported here are the thermal rearrangements of the 4-alkynyl- (1), 4-alkenyl- (7), and 4-alkyl-4-hydroxy-2-methyl-1-phenyl-3-benzylidenecyclobutene (11) to, respectively, the phenol 5, derived from the p-quinonemethide 4, the benzylidenecyclohexenone 10, and the acyclic dienone 14.