Chemical communications

Cross-coupling of benzylic acetates with arylboronic acids: one-pot transformation of benzylic alcohols to diarylmethanes

R Kuwano, M Yokogi

Index: Kuwano, Ryoichi; Yokogi, Masashi Chemical Communications, 2005 , # 47 p. 5899 - 5901

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Citation Number: 42

Abstract

Recently, we reported the cross-coupling of benzylic carbonates 1 with arylboronic acids 2 (Scheme 1). 8 The reaction proceeded successfully in DMF with a DPPPent–palladium catalyst. However, the optimal reaction conditions failed to trigger the reaction of benzylic acetates 4, which were more accessible than carbonates 1. The mechanism shown in Scheme 1 had been proposed for the catalytic reaction. We assumed that the alkoxide in intermediate A was ...