Self-cyclization of (E)-2-(trimethylsilylmethyl)pentadienol derivative. Synthesis of bicyclo[4.3.0]nonane ring systems
作者:Chiaki Kuroda、Masatoshi Okada、Shinya Shinozaki、Hideyuki Suzuki
DOI:10.1016/j.tet.2005.09.146
日期:2006.1
the title reaction was studied. When (E)-3-(4-t-butyl- and 4-phenylcyclohex-1-en-1-yl)-2-(trimethylsilylmethyl)prop-2-en-1-ols were treated with Ms2O or MsCl, 3-t-butyl- and 3-phenyl-8-methylbicyclo[4.3.0]nona-1(6),7-dienes were obtained, respectively. The corresponding (Z)-isomer afforded a complex mixture, among which an elimination product was detected. (E)-4-(4-t-Butylcyclohexylidene)-2-(trimeth
研究了标题反应的效用和局限性。用Ms 2 O或MsCl处理(E)-3-(4-叔丁基和4-苯基环己-1-烯-1-基)-2-(三甲基甲硅烷基甲基)丙-2-烯-1-醇分别获得3-叔丁基-和3-苯基-8-甲基双环[4.3.0] nona-1(6),7-二烯。相应的(Z)-异构体提供复杂的混合物,其中检测到消除产物。(E)-4-(4-叔丁基环己叉基)-2-(三甲基甲硅烷基甲基)丁-2-烯-1-醇仅提供消除产物。