Alkyne and alkene complexes of (tetramesityl¬porphyrinato)ruthenium(II)
Rajapakse, N., James, B.R., and David Dolphin
Can. J. Chem.
The reactions of benzene or toluene solnutions of RuII(TMP), where TMP is the dianion of 5,10,15,20-tetramesitylporphyrin, with some acetylenes and alkenes are reported. Acetylene yields the isolable [Ru(TMP)]2(μ-C2H2) species; with phenylacetylene or diphenylacetylene, 1:1 π-complexes are formed. The π-complexes Ru(TMP)(C2H4) and Ru(TMP)(C2H4)(iPrOH).iPrOH are isolated from reactions with ethylene, and a similar cyclohexene species is characterized in situ. The findings are relevant to O2-epoxidation of alkenes catalyzed by the trans-Ru(TMP)(O)2 complex.