Synthesis of 5,6,7,8-tetrahydroindolizines<i>via</i>a domino-type transformation based on the rhodium catalyzed hydroformylation of<i>N</i>-(β-methallyl)pyrroles
作者:Silvia Rocchiccioli、Giuditta Guazzelli、Raffaello Lazzaroni、Roberta Settambolo
DOI:10.1002/jhet.5570440234
日期:2007.3
Variously substituted 5,6,7,8-tetrahydroindolizines can be easily synthesized via a domino reactions sequence under rhodium catalyzed hydroformylation of N-(β-methallyl)pyrroles. The later are readily prepared from properly functionalized pyrroles via phase-transfer N-allylation in the presence of 18-crown-6 and potassium tert-butoxide.
在铑催化的N-(β-甲代烯丙基)吡咯的加氢甲酰化反应下,可以通过多米诺反应序列容易地合成各种取代的5,6,7,8-四氢吲哚并吲哚。后者可以容易地由适当官能化的吡咯在18-冠-6和叔丁醇钾存在下通过相转移N-烯丙基化制备。