Abstract
The reaction of the titanocene monophosphanes ( 1– 4) with the dimer [( p-cymene)RuCl 2] 2 gives the heterobimetallic compounds ( p-cymene)[(η 5-C 5H 5)(μ-η 5:η 1-C 5H 4(CR 2) n PR′ 2)TiCl 2]RuCl 2 ( 5– 8). The structure of 8, determined by X-ray diffraction, is reported here. A preliminary assessment of the performance of these complexes in ring-closing metathesis (RCM) revealed an excellent Ti–Ru–allenylidene pre-catalyst 12.
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