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。