A general and efficient copper catalyst for the double carbonylation reaction.
The use of (NHC)CuI complex in combination with a N-heterocyclic carbene precursor as catalyst for the double carbonylation of aryl Iodides and secondary amines solves the problem of using the precious metal Pd and phosphine ligands. The new protocol requires a nonprecious metal catalyst and has greater generality than those previously reported.
Liu
Jianming
J
State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, PR China.
Zhang
Rongzhao
R
Wang
Shoufeng
S
Sun
Wei
W
Xia
Chungu
C