Synthesis

Synthesis of Benzo [b] furans by Palladium-NHC Catalyzed Ring Closure of o-Bromobenzyl Ketones

J Farago, A Kotschy

Index: Farago, Janos; Kotschy, Andras Synthesis, 2009 , # 1 p. 85 - 90

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Citation Number: 18

Abstract

Abstract The palladium-catalyzed ring closure of aryl o-bromobenzyl ketones, easily accessible from aromatic aldehydes and 2-bromobenzyl bromide, provides a straightforward route to 2-arylbenzofurans. A study of the ring closure revealed that a heterocyclic carbene based catalyst provides the best results.