Synthesis of Phenol-Tagged Ruthenium Alkylidene Olefin Metathesis Catalysts for Robust Immobilisation Inside Metal–Organic Framework Support

Two new unsymmetrical N-heterocyclic carbene ligand (uNHC)-based ruthenium complexes featuring phenolic OH function were obtained and fully characterised. The more active one was then immobilised on the metal–organic framework (MOF) solid support (Al)MIL-101-NH2. catalytic activity of such a heterogeneous system tested, showing that, while catalyst is less than corresponding homogeneous in solution, it can catalyse selected olefin metathesis reactions, serving as proof-of-concept for immobilisation catalytically MOFs using tag.