Synthesis of 2-C2Ph2)(CO)(P-i-Pr3)2> (M=Os or Ru) and X-ray crystal structure of the osmium derivative

Article abstract of DOI:10.1016/0022-328X(94)80053-7

The tetrahydrido complex (1) reacts with diphenylacetylene to give cis- and trans-stilbene and 2-C2Ph2)(CO)(P-i-Pr3)2> (5).The X-ray crystal structure of 5 has been determined. 5 reacts with CO to give 2-C2Ph2)(CO)2(P-i-Pr3)2> (6).The related ruthenium complex 2-C2Ph2)(CO)(P-i-Pr3)2> (7) was obtained by reaction of 2-H2BH2)(CO)(P-i-Pr3)2> (8) with diphenylacetylene. 7 reacts with CO to give (9) and diphenylacetylene.The synthesis of the hydridovinyl complex (10) is also reported.Key words: Ruthenium; Osmium