Continuous Flow Synthesis of Metal–NHC Complexes**

The use of weak bases and mild conditions is currently the most sustainable attractive synthetic approach for preparation late-transition metal complexes, some which are widely used in catalysis, medicinal chemistry materials science. Herein, cuprate, aurate or palladate species a continuous flow CuI, AuI PdII-NHC complexes reported. All reactions examined proceed under extremely make technical grade acetone as solvent. scalability process was exemplified multigram-scale synthesis [Cu(IPr)Cl].