KOtBu mediated efficient approach for the synthesis of fused heterocycles via intramolecular O-/N-arylations

Raju Singha; Atiur Ahmed; Yasin Nuree; Munmun Ghosh; Jayanta K. Ray

doi:10.1039/C5RA07532G

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KO^tBu mediated efficient approach for the synthesis of fused heterocycles via intramolecular O-/N-arylations†

Raju Singha,^a Atiur Ahmed,^a Yasin Nuree,^a Munmun Ghosh^a and Jayanta K. Ray*^a

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* Corresponding authors

^a Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
E-mail: jkray@chem.iitkgp.ernet.in
Tel: +91 03222283326

Abstract

A novel and efficient methodology for the synthesis of 6H-benzo[c]chromenes, 6H-benzo[c]chromen-6-ones, carbazoles, dibenzofurans, dibenzooxepins has been developed. The reaction goes through intramolecular O-/N-arylations with sp²C–Br bonds via typical S_NAr pathway in presence of potassium-tert-butoxide base.

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Article information

DOI: https://doi.org/10.1039/C5RA07532G
Article type: Communication
Submitted: 25 Apr 2015
Accepted: 01 Jun 2015
First published: 01 Jun 2015

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RSC Adv., 2015,5, 50174-50177

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KO^tBu mediated efficient approach for the synthesis of fused heterocycles via intramolecular O-/N-arylations

R. Singha, A. Ahmed, Y. Nuree, M. Ghosh and J. K. Ray, RSC Adv., 2015, 5, 50174 DOI: 10.1039/C5RA07532G

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