期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 58, 期 31, 页码 10514-10520出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201904671
关键词
carboxylic acids; decarboxylation; energy transfer; photocatalysis
资金
- Alexander von Humboldt-Stiftung Funding Source: Medline
- Deutsche Forschungsgemeinschaft [SFB 858, Leibniz Award] Funding Source: Medline
Despite significant progress in aliphatic decarboxylation, an efficient and general protocol for radical aromatic decarboxylation has lagged far behind. Herein, we describe a general strategy for rapid access to both aryl and alkyl radicals by photosensitized decarboxylation of the corresponding carboxylic acids esters followed by their successive use in divergent carbon-heteroatom and carbon-carbon bond-forming reactions. Identification of a suitable activator for carboxylic acids is the key to bypass a competing single-electron-transfer mechanism and switch on an energy-transfer-mediated homolysis of unsymmetrical sigma-bonds for a concerted fragmentation/decarboxylation process.
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