Mercuric acetate cyclization of -(arylmethyl)piperidines; synthesis of indolo [,-g]morphans (tetracyclic ring system of strychnos indole alkaloids) and ,-benzomorphans
作者:Joan Bosch、Josep Bonjoch、Anna Diez、Anna Linares、Montserrat Moral、Mario Rubiralta
DOI:10.1016/s0040-4020(01)96488-9
日期:1985.1
3-g]morphans and 7,8-benzomorphans is reported. The key step in these syntheses is the mercuric acetate oxidation of appropriate 2-(4-piperidylmethyl) indoles or 4-benzylpiperidines, respectively. An alternative synthetic entry to 2-(4-piperidylmethyl)indoles, consisting in Wadsworth-Emmons condensation of a suitable 4-piperidone with diethyl 2-oxopropylphosphonate followed by catalytic hydrogenation and
报道了一种合成吲哚[2,3-g]吗啡和7,8-苯并吗啡的新途径。这些合成中的关键步骤分别是适当的2-(4-哌啶基甲基)吲哚或4-苄基哌啶的乙酸汞氧化。描述了2-(4-哌啶基甲基)吲哚的另一种合成入口,其包括合适的4-哌啶酮与2-氧代丙基膦酸二乙酯的Wadsworth-Emmons缩合,然后将所得的4-丙酮基哌啶催化加氢和费歇尔吲哚化。