1. ChemInform Abstract: Pd(II)-Catalyzed ortho- or meta-C-H Olefination of Phenol Derivatives
- Author
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Antonia F. Stepan, Xing-Guo Zhang, Hui-Xiong Dai, Jin-Quan Yu, and Gang Li
- Subjects
chemistry.chemical_compound ,Electrophilic substitution ,chemistry ,Ligand ,Phenol ,Surface modification ,Regioselectivity ,General Medicine ,Phenols ,Medicinal chemistry ,Catalysis - 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.
- Published
- 2013
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