4-Vinylbenzeneacetic acid

Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof


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568308, 562493, 562413, C07C 6364




A multi-step preparation of 4-vinylbenzeneacetic acid from the readily available 1,4-diethylbenzene is described. The method uses cobalt (II) catalyzed oxidation of 1,4-diethylbenzene to 4-ethylacetophenone followed by oxidative rearrangement of the latter to 4-ethylbenzeneacetic acid, selective photochlorination to produce 4-(1'-chloroethyl)benzeneacetic acid, and finally base-catalyzed dehydrochlorination of the latter to afford the title compound.

patent: 4362891 (1982-12-01), Guerrato et al.


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