Synthesis and characterization of new ruthenium N-heterocyclic carbene Hoveyda II-type complexes. Study of reactivity in ring closing metathesis reactions

Díaz Morales Urbano Manuel, Merino Marcos Estibaliz, Poli Evelyne, Brunel Daniel

2012

Dalton Transactions

This manuscript describes the synthesis and structural study of new second generation Hoveyda–Grubbs catalysts: 1,3-dimesitylacenaphthylenyl- 4,5-imidazolin-2-ylidene (BIAN-NHC) ruthenium isopropoxybenzylidene dichloride 3 and 1,3-bis- (2,6-dimethylphenyl)-2,3-dihydro-1H-imidazole Cl2Ru(vCHo- O-i-PrC6H4) 4. The electrochemical and catalytic behavior of these new complexes was compared with the conventional NHC carbene Hoveyda II IMes-type complexes 1 and 2 for ring closing metathesis reactions.