Organic Solvent-Free Olefins and Alcohols (ep)oxidation Using Recoverable Catalysts Based on [PM12O40]3− (M = Mo or W) Ionically Grafted on Amino Functionalized Silica Nanobeads

Yun Wang (1) , Florence Gayet (1) , Pascal Guillo (1) , Dominique Agustin (1)

1 LCC - Laboratoire de chimie de coordination

Catalyzed organic solvent-free (ep)oxidation were achieved using H3PM12O40 (M = Mo or W) complexes ionically grafted on APTES-functionalized nano-silica beads obtained from straightforward method (APTES = aminopropyltriethoxysilane). Those catalysts have been extensively analyzed through morphological studies (Dynamic Light Scattering (DLS), TEM) and several spectroscopic qualitative (IR, multinuclear solid-state NMR) and quantitative (1H and 31P solution NMR) methods. Interesting catalytic results were obtained for the epoxidation of cyclooctene, cyclohexene, limonene and oxidation of cyclohexanol with a lower [POM]/olefin ratio. The catalysts were found to be recyclable and reused during three runs with similar catalytic performances.

Mots clés: Catalysis; (ep)oxidation; Silica beads; Nanoparticles; Fnctionalization; Polyoxometalates; Ionic grafting; Organic solvent-free process

Domaines: Chimie de coordination

Yun Wang, Florence Gayet, Pascal Guillo, Dominique Agustin. Organic Solvent-Free Olefins and Alcohols (ep)oxidation Using Recoverable Catalysts Based on [PM12O40]3− (M = Mo or W) Ionically Grafted on Amino Functionalized Silica Nanobeads. Materials, 2019, 12 (20), pp.3278. ⟨10.3390/ma12203278⟩. ⟨hal-02338781⟩