Dial-a-base mechanochemical synthesis of N-heterocyclic carbene copper complexes
Dawid J Babula1,2, Rex S C Charman1, Josie A Hobson1
1Department of Chemistry, University of Bath, Bath, BA2 7AY, UK. d.j.liptrot@bath.ac.uk.
Abstract:
Liquid assisted ball milling of [NHC]HBr (NHC = N-heterocyclic carbene) salts with copper(I) chloride, and a range of alkali metal complexes was shown to efficiently produce (NHC)CuX (NHC = normal or RE-NHC, X = halide, alkoxide, amide, alkyl, aryl; RE-NHC = ring-expanded NHC).
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