62008-14-4Relevant articles and documents
Synthesis of (+/-)-4-Isocymobarbatol by Brominative Cyclization
Tanaka, Akira,Oritani, Takayuki
, p. 516 - 517 (2007/10/02)
The brominative cyclization of 5-bromo-2-geranyl-1,4-benzenediol bismethoxymethyl ether (2) with 2,4,4,6-tetrabromoccylohexydienone was reexamined.This cyclization of 2 resulted in the formation of methoxymethyl ether 10 of 2,4,6-tribromophenol, together with previously described tricyclic compound 7, thus supporting the intervention of oxonium ion 12 in this reaction.An analogous reaction of bismethoxyethoxymethyl ether 4 led to 8.Finally, 7 was converted to (+/-)-4-isocymobarbatol (6).