Synlett

Palladium-catalyzed self-coupling reaction of terminal alkynes in the presence of p-chloranil: A practical method for the synthesis of triethynylethenes

C Chen, Z Ai, J Lin, X Hong, C Xi

Index: Chen, Chao; Ai, Zhezhe; Lin, Jie; Hong, Xiaoyin; Xi, Chanjuan Synlett, 2006 , # 15 p. 2454 - 2458

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Citation Number: 7

Abstract

Pd-catalyzed reaction of aliphatic-1-alkynes in the presence of p-chloranil afforded triethynylethenes as exclusive self-coupling products in good yields. On the other hand, diynes were obtained when aromatic alkynes were used. ... The palladium-catalyzed coupling reaction has proved to be an extremely powerful tool to construct carbon-carbon bonds. [8] In a typical Pd-catalyzed process, oxidative coupling of terminal alkynes occurred in the presence of oxidants, such ...