Gold??Catalyzed Oxidative Ring Expansions and Ring Cleavages of Alkynylcyclopropanes by Intermolecular Reactions Oxidized by Diphenylsulfoxide

…, K Pati, GY Lin, SM Sohel, HH Hung…

Index: Li, Chia-Wen; Pati, Kamalkishore; Lin, Guan-You; Sohel, Shariar Md. Abu; Hung, Hsiao-Hua; Liu, Rai-Shung Angewandte Chemie - International Edition, 2010 , vol. 49, # 51 p. 9891 - 9894

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Citation Number: 128

Abstract

Cyclobutane derivatives are important structural units in many natural products,[1, 2] but efficient methods for their synthesis are few compared to those for the preparation of other carbocyclic systems.[3, 4] An advance in the synthesis of cyclobutane derivatives involves metal-catalyzed ring-expansions of cyclopropane derivatives, including alkylidenecyclopropanes,[5] allenylcyclopropanols [6] or alkynylcyclopropanols,[7] with ...