A stable intermediate in the Sommelet–Hauser rearrangement of 1-methyl-2-phenyl-piperidinium 1-methylides: the improved Sommelet–Hauser rearrangement
作者:Naohiro Shirai、Fumihiko Sumiya、Yoshiro Sato、Mikiko Hori
DOI:10.1039/c39880000370
日期:——
2-(substituted phenyl)piperidinium iodides (2) with caesium fluoride gave high yields of 2-methyl-1,3,4,5,6,11a-hexahydro-2H-2-benzazonines (4) which are regarded as unstable intermediates in the Sommelet-Hauser rearrangement of ammonium ylides (3) to 2-methyl-2,3,4,5,6,7-hexahydro-1H-2-benzazonine derivatives (5).
1-甲基-1-(三甲基甲硅烷基)甲基-2-(取代的苯基)碘化碘鎓(2)与氟化铯的反应产生了高产率的2-甲基-1,3,4,5,6,11a-hexahydro-2 H -2-苯甲zon嗪(4),被视为铵盐(3)的Sommelet-Hauser重排为2-甲基-2,3,4,5,6,7-六氢-1 H -2-的不稳定中间体苯扎宗碱衍生物(5)。