Functionalized 2-azabicyclo[3.3.1]nonanes. IV. synthesis of the indolo[3,2-f]morphan system.
作者:Josep Bonjoch、Nuria Casamitjana、Joan Bosch
DOI:10.1016/0040-4020(82)85014-x
日期:1982.1
A short route to the 2-azabicyclo[3.3.1]nonan-7-one system is described. Condensation of 4-piperidones with diethyl 2-oxopropylphosphonate, followed by catalytic hydrogenation furnished the corresponding piperidylpropanones which were cyclized with mercuric acetate in acetic acid to the target target bicyclic ketones . The Fischer indole synthesis from afforded regioselectively the indole [3,2-f]morphan
描述了到2-氮杂双环[3.3.1]壬南-7-一系统的短路径。将4-哌啶酮与2-氧代丙基膦酸二乙酯缩合,然后催化氢化,得到相应的哌啶基丙烷,将其与乙酸汞在乙酸中环化成目标目标双环酮。由Fischer吲哚合成可选择性地提供吲哚[3,2- f ]吗啡,一种新的异吗啡类型。