Hydro-de-halogenation and consecutive deprotection of chlorinated N-amido-pyrrolidin-2-ones with Raney-Ni:: an effective approach to gabapentin

被引:24
作者
Cagnoli, R
Ghelfi, F
Pagnoni, UM
Parsons, AF
Schenetti, L
机构
[1] Univ Modena & Reggio Emilia, Dipartimento Chim, I-41100 Modena, Italy
[2] Univ York, Dept Chem, York YO10 5DD, N Yorkshire, England
关键词
hydrazides; cyclizations; pyrrolidinones; hydrogenolysis;
D O I
10.1016/j.tet.2003.10.046
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The benzoylamino group was identified as a useful radical cyclization auxiliary that can be smoothly removed on hydro-dehalogenation of chlorinated N-substituted-pyrrolidin-2-ones with Raney-Ni. This methodology was successfully implemented in a new and appealing route to the anti-epileptic drug gabapentin. (C) 2003 Published by Elsevier Ltd.
引用
收藏
页码:9951 / 9960
页数:10
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