Methods for preparing ruthenium carbene complex precursors and ruthenium carbene complexes

摘要

A method for preparing a ruthenium carbene complex precursor includes reacting a ruthenium refinery salt with a hydrogen halide to form a ruthenium intermediate, and reacting the ruthenium intermediate with an L-type ligand to form the ruthenium carbene complex precursor. A method for preparing a ruthenium vinylcarbene complex includes converting a ruthenium carbene complex precursor into a ruthenium hydrido halide complex, and reacting the ruthenium hydrido halide complex with a propargyl halide to form the ruthenium vinylcarbene complex. A method for preparing a ruthenium carbene complex includes converting a ruthenium carbene complex precursor into a ruthenium carbene complex having a structure (PR¹R²R³)₂Cl₂Ru═CH—R⁴, wherein R¹, R², R³, and R⁴ are alike or different, and wherein covalent bonds may optionally exist between two or more of R¹, R², and R³ and/or two of R¹, R², and R³ taken together may optionally form a ring with phosphorous.