Design and synthesis of novel benzopyrazolodiazepinones via intra-molecular alkylation of α-alkylcarbonyl radicals mediated by dilauroylperoxide
作者:Luz M. Jaramillo-Gómez、Gerson López、Braulio Insuasty、Jairo Quiroga、Rodrigo Abonia
DOI:10.1016/j.tetlet.2011.05.105
日期:2011.8
Using a tin-free strategy, novel 4H-benzo[f]pyrazolo[1,5-a][1,3]diazepin-5(6H)-ones were synthesized in acceptable yields via intra-molecular alkylation over a benzene ring, of alpha-alkylcarbonyl radicals generated from ethyl pyrazolylbenzylaminoxanthates, using dilauroyl peroxide (DLP) as the radical initiator. (C) 2011 Elsevier Ltd. All rights reserved.