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

A well-defined silica-supported molybdenum dioxo species, (&z.tbd;SiO) 2 Mo(O) 2 , is prepared by grafting Mo(O) 2 [OSi(O t Bu) 3 ] 2 on partially dehydroxylated silica SiO 2-700 , followed by thermal treatment under high-vaccum and calcination. Activated by an organosilicon agent the resulting...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2018-04, Vol.54 (32), p.3989-3992
Main Authors: Yamamoto, Keishi, Chan, Ka Wing, Mougel, Victor, Nagae, Haruki, Tsurugi, Hayato, Safonova, Olga V, Mashima, Kazushi, Copéret, Christophe
Format: Article
Language:English
Subjects:
Decomposition reactions
Heat treatment
Metathesis
Molybdenum
Silicon dioxide
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Summary:A well-defined silica-supported molybdenum dioxo species, (&z.tbd;SiO) 2 Mo(O) 2 , is prepared by grafting Mo(O) 2 [OSi(O t Bu) 3 ] 2 on partially dehydroxylated silica SiO 2-700 , followed by thermal treatment under high-vaccum and calcination. Activated by an organosilicon agent the resulting material is active for olefin metathesis at 30 °C. A well-defined silica-supported molybdenum dioxo species, (&z.tbd;SiO) 2 Mo(O) 2 , prepared via Surface Organometallic Chemistry, is highly active in metathesis upon reaction with organosilicon reducing agent.
ISSN:1359-7345
1364-548X
DOI:10.1039/c8cc01876f