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American Chemical Society, Journal of the American Chemical Society, 20(135), p. 7567-7571, 2013

DOI: 10.1021/ja400659s

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Pd(II)-Catalyzed ortho- or meta-C–H Olefination of Phenol Derivatives

Journal article published in 2013 by Hui-Xiong Dai, Gang Li ORCID, Xing-Guo Zhang, Antonia F. Stepan, Jin-Quan Yu
This paper is available in a repository.
This paper is available in a repository.

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Abstract

A combination of weakly coordinating auxiliaries and ligand acceleration allows for the development of both ortho- and meta-selective C–H olefination of phenol derivatives. These reactions demonstrate the feasibility of directing C–H functionalizations when functional groups are distal to target C–H bonds. The meta-C–H functionalization of electron-rich phenol derivatives is unprecedented and orthogonal to previous electrophilic substitution of phenols in terms of regioselectivity. These methods are also applied to functionalize α-phenoxyacetic acids, a fibrate class of drug scaffolds.