Synthesis of benzo[f]indole-4,9-dione and benzo[b]carbazole-6,11-dione derivatives via one-pot sequential C,N-dialkylation of enaminones of β-diketones and ketoesters by 2,3-dichloronaphthoquinone

Hu, Hua You; Liu, Yun; Ye, Miao; Xu, Jian Hua

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Synthesis of benzo[f]indole-4,9-dione and benzo[b]carbazole-6,11-dione derivatives via one-pot sequential C,N-dialkylation of enaminones of β-diketones and ketoesters by 2,3-dichloronaphthoquinone

Date

2006-08-01

Authors

Abstract

Direct one-pot syntheses of benzo[f]indole-4,9-dione and benzo[b]carbazole-6,11-dione derivatives have been achieved in moderate to high yields via sequential C,N-dialkylation of the monoenamines of β-dicarbonyl compounds (the β-enaminones) by 2,3-dichloronaphthoquinone.