Synthesis of Mono- and Bis-N-Heterocyclic Carbene Copper(I) Complexes via Decarboxylative Generation of Carbenes

[摘要]：Zwitterionic carboxylates can be thermally decarboxylated in the presence of copper salts to form NHC-copper complexes. The selective formation of either mono- or bis-NHC complexes is possible through simple control of the molar equivalents of the copper salt. A variety of different NHC ligands with either saturated or unsaturated backbones or bearing N-aryl or N-alkyl substituents can be complexed to copper.

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