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Direct Access to Benzo[b]furans through Palladium-Catalyzed Oxidative Annulation of Phenols and Unactivated Internal Alkynes

2,3‐Disubstituted benzo[b]furans are prepared in one step from commercially available phenols and readily accessible unactivated internal alkynes (see scheme). This Pd‐catalyzed oxidative annulation has a broad substrate scope and allows access to a wide range of benzo[b]furans.

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Published in:	Angewandte Chemie International Edition 2013-04, Vol.52 (17), p.4607-4612
Main Authors:	Kuram, Malleswara Rao, Bhanuchandra, M., Sahoo, Akhila K.
Format:	Article
Language:	English
Subjects:	Accessibility Alkynes Alkynes - chemistry benzo[b]furans Benzofurans - chemical synthesis Benzofurans - chemistry Catalysis Chemical reactions Molecular Structure Organic chemistry Oxidation-Reduction oxidative annulation Palladium Palladium - chemistry Phenols Phenols - chemistry regioselectivity
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description	2,3‐Disubstituted benzo[b]furans are prepared in one step from commercially available phenols and readily accessible unactivated internal alkynes (see scheme). This Pd‐catalyzed oxidative annulation has a broad substrate scope and allows access to a wide range of benzo[b]furans.
doi_str_mv	10.1002/anie.201210217
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subjects	Accessibility Alkynes Alkynes - chemistry benzo[b]furans Benzofurans - chemical synthesis Benzofurans - chemistry Catalysis Chemical reactions Molecular Structure Organic chemistry Oxidation-Reduction oxidative annulation Palladium Palladium - chemistry Phenols Phenols - chemistry regioselectivity
title	Direct Access to Benzo[b]furans through Palladium-Catalyzed Oxidative Annulation of Phenols and Unactivated Internal Alkynes
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