Journal of Heterocyclic Chemistry

1, 2, 3, 9??Tetrahydro??4H??carbazol??4??one and 8, 9??dihydropyrido??[1, 2??a] indol??6 (7H)??one from 1H??indole??2??butanoic acid

RA Bunce, B Nammalwar

Index: Bunce, Richard A.; Nammalwar, Baskar Journal of Heterocyclic Chemistry, 2009 , vol. 46, # 2 p. 172 - 177

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Citation Number: 22

Abstract

Earlier studies from this laboratory [1] and by others [2] described the synthesis of substituted indoles from 2-nitrobenzyl ketones based on a tandem reduction—cycloaromatization reaction. Our recent work has sought to assemble more complex structures using this strategy. In this study, we have developed a route to synthesize 1, 2, 3, 9-tetrahydro-4H- carbazol-4-one and 8, 9-dihydropyrido [1, 2-a] indol-6 (7H)-one from 1H-indole-2-butanoic ...