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

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

Journal Name: Letters in Organic Chemistry

Volume 11 , Issue 3 , 2014

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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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Article Details

VOLUME: 11
ISSUE: 3
Year: 2014
Page: [188 - 193]
Pages: 6
DOI: 10.2174/15701786113106660079
Price: $65

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