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Amine‐Responsive Disassembly of Au I –Cu I Double Salts for Oxidative Carbonylation
Author(s) -
Cao Yanwei,
Yang JianGong,
Deng Yi,
Wang Shengchun,
Liu Qi,
Shen Chaoren,
Lu Wei,
Che ChiMing,
Chen Yong,
He Lin
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201914089
Subject(s) - catalysis , amine gas treating , chemistry , steric effects , carbonylation , carbene , primary (astronomy) , reactivity (psychology) , combinatorial chemistry , oxidative phosphorylation , oxidative addition , ligand (biochemistry) , organic chemistry , carbon monoxide , medicine , biochemistry , physics , alternative medicine , receptor , pathology , astronomy
A sensitive amine‐responsive disassembly of self‐assembled Au I ‐Cu I double salts was observed and its utilization for the synergistic catalysis was enlightened. Investigation of the disassembly of [Au(NHC) 2 ][CuI 2 ] revealed the contribution of Cu‐assisted ligand exchange of N‐heterocyclic carbene (NHC) by amine in [Au(NHC) 2 ] + and the capacity of [CuI 2 ] − on the oxidative step. By integrating the implicative information coded in the responsive behavior and inherent catalytic functions of d 10 metal complexes, a catalyst for the oxidative carbonylation of amines was developed. The advantages of this method were clearly reflected on mild reaction conditions and the significantly expanded scope (51 examples); both primary and steric secondary amines can be employed as substrates. The cooperative reactivity from Au and Cu centers, as an indispensable prerequisite for the excellent catalytic performance, was validated in the synthesis of (un)symmetric ureas and carbamates.