A Novel and Facile Synthesis of N-Substituted 8-hydroxybenzo[g] chromeno[4, 3-b]indol-6(13H)-ones by a Nenitzescu Reaction

Zhiwei      Chen; Xiaodong      Wang; Weike      Su

doi:10.2174/15701786113106660079

Abstract

N-Substituted 8-hydroxybenzo[g]chromeno[4,3-b]indol-6(13H)-ones have been efficiently synthesized via a Nenitzescu reaction of naphthoquinone (or benzoquinone) and N-substituted 4-aminocoumarins in the presence of a catalytic amount of KHSO₄ with a [bmim][BF₄]/toluene system.

Keywords: Coumarins, Nenitzescu reaction, quinones, ionic liquid.

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Letters in Organic Chemistry

Title:A Novel and Facile Synthesis of N-Substituted 8-hydroxybenzo[g] chromeno[4, 3-b]indol-6(13H)-ones by a Nenitzescu Reaction

Volume: 11 Issue: 3

Author(s): Zhiwei Chen, Xiaodong Wang and Weike Su

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Keywords: Coumarins, Nenitzescu reaction, quinones, ionic liquid.

Abstract: N-Substituted 8-hydroxybenzo[g]chromeno[4,3-b]indol-6(13H)-ones have been efficiently synthesized via a Nenitzescu reaction of naphthoquinone (or benzoquinone) and N-substituted 4-aminocoumarins in the presence of a catalytic amount of KHSO₄ with a [bmim][BF₄]/toluene system.

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Chen Zhiwei, Wang Xiaodong and Su Weike, A Novel and Facile Synthesis of N-Substituted 8-hydroxybenzo[g] chromeno[4, 3-b]indol-6(13H)-ones by a Nenitzescu Reaction, Letters in Organic Chemistry 2014; 11 (3) . https://dx.doi.org/10.2174/15701786113106660079