Ml. Buil et Ma. Esteruelas, Synthesis and characterization of ruthenium-osmium complexes containing mu-bisalkenyl, mu-alkenylvinylidene, and mu-alkenylcarbene bridge ligands, ORGANOMETAL, 18(9), 1999, pp. 1798-1800
The metaloalkyne complex Ru{(E)-CH=CH-(CH2)(4)-C equivalent to CH}Cl(CO)((P
Pr3)-Pr-i)(2) reacts with OsHCl(CO)-((PPr3)-Pr-i)(2) to give the heterodinu
clear-mu-bisalkenyl derivative ((PPr3)-Pr-i)(2)(CO)ClRu{(E)-CH=CH-(CH2)(4)-
CH=CH-(E)}OsCl(CO)((PPr3)-Pr-i)(2) via the hydrido-vinylidene intermediate
((PPr3)-Pr-i)(2)(CO)ClRu{(E)-CH=CH-(CH2)(4)- CH=C}-OsHCl(CO)((PPr3)-Pr-i)(2
). The reaction of the heterodinuclear-mu-bisalkenyl complex with HCl selec
tively affords ((PPr3)-Pr-i)(2)(CO) ClRu{(E)-CH=CH-(CH2)(5)-CH}OsCl2(CO)-((
PPr3)-Pr-i)(2).