Bulletin of the Chemical Society of Japan

Palladium-catalyzed vinylation of haloazulenes and halotropolones with olefins. Utility of the heck reaction in the conjugated carbon chain preparation.

H Horino, T Asao, N Inoue

Index: Horino, Hiroshi; Asao, Toyonobu; Inoue, Naoto Bulletin of the Chemical Society of Japan, 1991 , vol. 64, # 1 p. 183 - 190

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Citation Number: 20

Abstract

The reactions of 3-iodotropolone with styrenes (styrene, p-methoxystyrene, and 2- vinylpyridine), methyl acrylate, and allylic compounds (methyl 3-butenoate, 3-butenenitrile, 1- allyl-3, 4-dimethoxybenzene, and 1-allyl-3, 4-methylenedioxybenzene) were carried out, according to the modified Heck's procedure, to give 3-styryl-, 3-(2-carboxyvinyl)-, and 3-(3- substituted 1-propenyl) tropolones, respectively. Similarly, 4-bromo-or 5-bromotropolone ...