Journal of the American Chemical Society

Palladium-catalyzed ring enlargement of aryl-substituted methylenecyclopropanes to cyclobutenes

M Shi, LP Liu, J Tang

Index: Shi, Min; Liu, Le-Ping; Tang, Jie Journal of the American Chemical Society, 2006 , vol. 128, # 23 p. 7430 - 7431

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Citation Number: 99

Abstract

Methylenecyclopropanes 1 could be converted to the corresponding cyclobutenes 2 under the catalysis of palladium acetate in the presence of metal bromide in 1, 2-dichloroethane under mild conditions. A plausible reaction mechanism has been proposed on the basis of ...