Dalton Transactions · 2021 · 16 citations · 36 references
Natural SciencesChemistryCatalysisInorganic ChemistryOrganic ChemistryCatalytic MaterialsCoordination ChemistryHeterocycle SynthesisHeterocyclic ChemistryHeterocyclic CompoundsTransition Metal ChemistryCatalytic SelectivityCopper-catalyzed CouplingHeterocyclic ReactivityHeterocyclic Ring ExpansionReactivityTransition Metal-catalyzed SynthesisTransition-metal-catalyzed FunctionalizationTransition-metal-catalyzed Heterocycle Synthesis
catalytic reduction to CO is viable in the presence of excess bis(pinacolato)diboron. In contrast, in the case of iso(thio)cyanates, the isocyanide byproduct of dechalcogenation reacted with (6-Dipp)CuBpin to generate a copper(I) borylimidinate, (6-Dipp)CuC(NR)Bpin, which went on to react with heterocumulenes. This off-cycle reactivity gives selective access to a range of novel boron-containing heterocycles bonded to copper, but precludes catalytic reactivity.
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