Synthesis and Reactivity of Hybrid Phosphido- and Thiolato-Bridged Diruthenium Complexes
摘要:
Reactions of the monophosphido-bridged diruthenium(III) complexes [Cp*RuCl(mu-PR2)(mu-Cl)RuClCp*] with a variety of (alkylthio)trimethylsilanes afford the hybrid phosphido- and thiolato-bridged diruthenium complexes [Cp*RuCl(mu-PR2)(mu-SR')RuClCp*]. Although some newly prepared hybrid diruthenium complexes are found to work as catalysts toward propargylic substitution reactions of propargylic alcohols with nucleophiles, their catalytic activity is lower than that of the methanethiolato-bridged diruthenium complex.
Synthesis and Reactivity of Hybrid Phosphido- and Hydrosulfido-Bridged Diruthenium Complexes: Transformations into Diruthenium and Tetraruthenium Complexes Bridged by Phosphido and Sulfido Ligands
uClCp*]. The hydrosulfido-bridged diruthenium(III) complex can be further converted into the corresponding sulfido-bridged multinuclear ruthenium(III) complex via deprotonation of the hydrosulfido ligand. The hydrosulfido-bridged diruthenium(III) complex also reacts with bases to afford a coordinatively unsaturated diruthenium(III) complex, where insertion of terminal alkynes further occurs to form