Dual-Metal N-Heterocyclic Carbene Complex (M = Au and Pd)-Functionalized UiO-67 MOF for Alkyne Hydration-Suzuki Coupling Tandem Reaction

Metal N-heterocyclic carbene complexes (NHC-M) have been recognized as an important class of organometallic catalysts. Herein, we demonstrate that different NHC-M (M = Au and Pd) species can be simultaneously introduced into a single metal organic framework (MOF) by direct assembly of NHC-M-decorated ligands and metal ions under solvothermal conditions. The obtained UiO-67-Au/Pd-NHBC MOF with different organometallic NHC-M species can be a highly reusable dual catalyst to sequentially promote alkyne hydration-Suzuki coupling reaction. The potential utility of this strategy is highlighted by the preparation of many more new multicatalysts of this type for various organic transformations in a sequential way.

Automated summary

Metal N-heterocyclic carbene complexes have been demonstrated to be an important class of organometallic catalysts. This study shows a method of simultaneously introducing different NHC-M species into a single MOF, forming a dual catalyst for promoting alkyne hydration-Suzuki coupling reaction. The potential utility of this strategy is highlighted by the preparation of more new multicatalysts for various organic transformations.