Hybrid Organic-Inorganic Materials Derived from a Monosilylated Hoveyda-type Ligand as Recyclable Diene and Enyne Metathesis Catalysts

Xavier Elias (1) , Roser Pleixats (1) , Michel Wong Chi Man (2) , Joël J. E. Moreau (2)

1 Chemistry department
2 ICGM ICMMM - Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier

The synthesis of a monosilylated Hoveyda-type monomer is described as well as the preparation of several organic-inorganic hybrid materials derived from it by sol-gel processes and by anchoring to commercial silica gel and MCM-41. The resulting materials were treated with first and/or second generation Grubbs catalyst to generate Hoveyda-Grubbs type alkylidene ruthenium complexes covalently bonded to the silica matrix. These materials are efficient recyclable catalysts for the ring-closing metathesis reaction of dienes and enynes, even for the formation of tri- and tetrasubstituted olefins.

Mots clés: catalyst immobilization • metathesis • organic-inorganic hybrid materials • ruthenium • sol-gel process

Domaines: Matériaux; Catalyse

Xavier Elias, Roser Pleixats, Michel Wong Chi Man, Joël J. E. Moreau. Hybrid Organic-Inorganic Materials Derived from a Monosilylated Hoveyda-type Ligand as Recyclable Diene and Enyne Metathesis Catalysts. Advanced Synthesis and Catalysis, 2007, 349, pp.1701-1713. ⟨10.1002/adsc.200600627⟩. ⟨hal-00179893⟩