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RESEARCH PRODUCT

Ruthenium titanocene and ruthenium titanium half-sandwich bimetallic complexes in catalytic cyclopropanation

Pierre Le GendreClaude MoïsePhilippe RichardJerome Goux

subject

CyclopropanationOrganic Chemistrychemistry.chemical_elementMetathesisBiochemistryCatalysisRutheniumInorganic Chemistrychemistry.chemical_compoundchemistryEthyl diazoacetatePolymer chemistryMaterials ChemistryOrganic chemistryPhysical and Theoretical ChemistryBimetallic stripPhosphineTitanium

description

Abstract The reaction of the phosphine functionalised titanium half-sandwich complexes 7, 9 and 10 with the binuclear complex [(p-cymene)RuCl2]2 allowed the access to three new early-late bimetallic complexes (p-cymene)[(μ-η5:η1-C5H4(CH2)nPR2)TiX3]RuCl2 (11–13). The structure of 11 (n = 0, X = Cl) has been confirmed by X-ray diffraction. The ruthenium titanium half-sandwich bimetallic complexes so formed and the ruthenium titanocene analogues 4–6 catalyse the addition of ethyl diazoacetate to styrene with high selectivity toward cyclopropanation versus metathesis contrary to the monometallic complexes (p-cymene)RuCl2PR3.

yearjournalcountryeditionlanguage
2005-01-01Journal of Organometallic Chemistry
https://doi.org/10.1016/j.jorganchem.2004.09.021