A flexible radical approach to 5-substituted 4,5-dihydro-3H-pyrido[4,3-b]azepin-2-ones. Some mechanistic observations on the radical cyclisation-aromatisation process

被引:11
作者
Petit, Laurent [1 ]
Botez, Iuliana [2 ]
Tizot, Andre [2 ]
Zard, Samir Z. [1 ]
机构
[1] Ecole Polytech, UMR CNRS 7652, Lab Synth Organ, F-91128 Palaiseau, France
[2] Inst Rech Servier IdRS, F-78290 Croissy Sur Seine, France
关键词
Radical cyclisation; Radical addition; Xanthates; Pyridoazepinones; Peroxides; XANTHATES; INDOLES;
D O I
10.1016/j.tetlet.2012.04.020
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Variously substituted novel dihydropyridoazepinones have been prepared by an intermolecular radical addition followed by a radical cyclisation on a pyridine ring. The latter process involved the use of a combination of two different peroxides, an experimental contrivance resulting from a careful product analysis and a better understanding of the cyclisation step. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:3220 / 3224
页数:5
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