4.8 Article

Synthesis of Stilbene and Distyrylbenzene Derivatives through Rhodium-Catalyzed Ortho-Olefination and Decarboxylation of Benzoic Acids

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ORGANIC LETTERS
卷 12, 期 24, 页码 5776-5779

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AMER CHEMICAL SOC
DOI: 10.1021/ol1027392

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  1. Ministry of Education, Culture, Sports, Science and Technology, Japan

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Ortho-substituted benzoic acids efficiently undergo precisely ordered ortho-olefination/decarboxylation upon treatment with styrenes in the presence of a rhodium catalyst and silver salt oxidant to afford the corresponding meta-substituted stilbene derivatives. The selective syntheses of 1,3- and 1,4-distyrylbenzenes have also been realized through the reactions of simple benzoic acid and phthalic acid, respectively, with styrene under similar conditions.

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