锰(III)引发的氧化自由基反应提供了一种从2-氨基-1,4-萘醌和羰基化合物合成苯并[ f ]吲哚-4,9-二酮的新方法。还用不对称酮研究了该反应的区域选择性,所述不对称酮由其形成异构体吲哚10和11。在大多数情况下,对于α-卤代,α-苯氧基和α-甲磺酰基酮,该反应具有很高的区域选择性。用2-烷基取代的1,3-二酮14,获得吲哚11作为唯一产物。
Oxidative free radical reactions between 2-amino-1,4-naphthoquinones and carbonyl compounds
作者:Yi-Lung Wu、Che-Ping Chuang、Pi-Yun Lin
DOI:10.1016/s0040-4020(01)00480-x
日期:2001.6
initiated oxidative free radical reaction provides a novel method for the synthesis of benzo[f]indole-4,9-diones from 2-amino-1,4-naphthoquinones and carbonyl compounds. The regioselectivity of this reaction was also studied with unsymmetrical ketones from which both isomeric indoles 10 and 11 were formed. With α-halo, α-phenoxy and α-methanesulfonyl ketones, in most cases, this reaction gave high
锰(III)引发的氧化自由基反应提供了一种从2-氨基-1,4-萘醌和羰基化合物合成苯并[ f ]吲哚-4,9-二酮的新方法。还用不对称酮研究了该反应的区域选择性,所述不对称酮由其形成异构体吲哚10和11。在大多数情况下,对于α-卤代,α-苯氧基和α-甲磺酰基酮,该反应具有很高的区域选择性。用2-烷基取代的1,3-二酮14,获得吲哚11作为唯一产物。