Copper salt-catalyzed homo-coupling reaction of potassium alkynyltrifluoroborates: a simple and efficient synthesis of symmetrical 1,3-diynes
作者:Marcio W. Paixão、Minéia Weber、Antonio L. Braga、Juliano B. de Azeredo、Anna M. Deobald、Hélio A. Stefani
DOI:10.1016/j.tetlet.2008.02.083
日期:2008.4
The copper-catalyzed dimerization of alkynyltrifluoroborates proceeds readily with good yields. The homo-coupling reaction can be effected in DMSO, in the open air, using Cu(OAc)2 as catalyst in the absence of any other additives. A variety of functional groups are tolerated.