Silica-supported isolated molybdenum di-oxo species: formation and activation with organosilicon agent for olefin metathesis.

Keishi Yamamoto,Ka Wing Chan,Victor Mougel,Haruki Nagae,Hayato Tsurugi,Olga V Safonova,Kazushi Mashima,Christophe Copéret

CHEMICAL COMMUNICATIONS（2018）

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摘要

A well-defined silica-supported molybdenum dioxo species, ( SiO)(2)Mo(O)(2), is prepared by grafting Mo(O)(2)[OSi(OtBu)(3)](2) on partially dehydroxylated silica SiO2-700, followed by thermal treatment under high-vaccum and calcination. Activated by an organo-silicon agent the resulting material is active for olefin metathesis at 30 degrees C.

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