Terminal alkynes undergo self-coupling reactions in the presence of palladium bis(triphenyl phosphine) dichloride, copper(I) iodide, iodine and diisopropyl amine to give the corresponding diynes in good yields. (C) 1997 Elsevier Science Ltd.
Gold-Catalyzed Oxidative Coupling of Alkynes toward the Synthesis of Cyclic Conjugated Diynes
作者:Xiaohan Ye、Haihui Peng、Chiyu Wei、Teng Yuan、Lukasz Wojtas、Xiaodong Shi
DOI:10.1016/j.chempr.2018.07.004
日期:2018.8
developed as an efficient approach for the synthesis of challenging cyclic conjugated diynes (CCD). Compared with the classic copper-promoted oxidative coupling reaction of alkynes, this gold-catalyzed process exhibited a faster reaction rate due to rapid reductive elimination from the Au(III) intermediate. This unique reactivity thus allowed a challenging diyne macrocyclization to take place with high