A co-operative Ni-Cu system for C-sp-C-sp and C-sp-C-sp2 cross-coupling providing a direct access to unsymmetrical 1,3-diynes and en-ynes

作者：Mukherjee Nirmalya; Kundu Debasish; Ranu Brindaban C^*

来源：Chemical communications, 2014, 50(99): 15784-15787.

DOI：10.1039/c4cc07413k

An efficient cross-coupling of alkynes with alkynyl and alkenyl halides catalysed by a Ni-Cu system without any ligand has been achieved. The reaction is suggested to proceed by Ni(0) catalysis assisted by Cu(I). A series of functionalised diaryl, aryl-alkyl, aryl-heteroaryl, diheteroaryl 1,3-di-ynes and en-ynes are obtained in high yields.

• 出版日期2014