Solid-supported cross metathesis and the role of the homodimerization of the non-immobilized olefin.
We have prepared immobilized olefins as models for the cross metathesis using different olefin partners in the presence of second generation Grubbs and Hoveyda-Grubbs precatalysts. We have demonstrated that solid-phase cross metathesis is strongly dependent on the degree of homodimerization of the non-immobilized olefin and the reactivity of such a homodimer. As in the homogeneous phase, the Hoveyda-Grubbs precatalyst was better for immobilized alpha,beta-unsaturated carbonyl compounds.
Poeylaut-Palena
Andrés A
AA
Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET, Suipacha 531, S2002LRK Rosario, Argentina.
Testero
Sebastian A
SA
Mata
Ernesto G
EG
D000475:Alkenes / Q000737:chemistry*; D019281:Dimerization
D000475:Alkenes