Highly active, stable, and selective well-defined silica supported Mo imido olefin metathesis catalysts

Frédéric Blanc; Jean Thivolle-Cazat; Jean Marie Basset; Christophe Copéret; Adam S. Hock; Zachary J. Tonzetich; Richard R. Schrock

doi:10.1021/ja068249p

Highly active, stable, and selective well-defined silica supported Mo imido olefin metathesis catalysts

Frédéric Blanc, Jean Thivolle-Cazat, Jean Marie Basset, Christophe Copéret^*, Adam S. Hock, Zachary J. Tonzetich, Richard R. Schrock

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

80 Scopus citations

Abstract

Grafting 2 [Mo(_≡NAr)(=CHCMe₂R¹)(NR₂)₂] on SiO_2-(700) gives selectively [_≡(SiO)Mo(_≡NAr)(=CHCMe₂R¹)(NR₂)] (1), according to mass balance analysis, IR, and NMR spectroscopies. The replacement of one amido group by a siloxy group from the surface of silica dramatically increased the reactivity of the Mo complex in olefin metathesis, and the remaining amido ligand brings stability and selectivity to the system as evidenced by the absence of formation of 1-butene in the metathesis of propene and the high turnovers obtained for the metathesis of ethyl oleate.

Original language	English (US)
Pages (from-to)	1044-1045
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	129
Issue number	5
DOIs	https://doi.org/10.1021/ja068249p
State	Published - Feb 7 2007
Externally published	Yes

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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title = "Highly active, stable, and selective well-defined silica supported Mo imido olefin metathesis catalysts",

abstract = "Grafting 2 [Mo(≡NAr)(=CHCMe2R1)(NR2)2] on SiO2-(700) gives selectively [≡(SiO)Mo(≡NAr)(=CHCMe2R1)(NR2)] (1), according to mass balance analysis, IR, and NMR spectroscopies. The replacement of one amido group by a siloxy group from the surface of silica dramatically increased the reactivity of the Mo complex in olefin metathesis, and the remaining amido ligand brings stability and selectivity to the system as evidenced by the absence of formation of 1-butene in the metathesis of propene and the high turnovers obtained for the metathesis of ethyl oleate.",

author = "Fr{\'e}d{\'e}ric Blanc and Jean Thivolle-Cazat and Basset, {Jean Marie} and Christophe Cop{\'e}ret and Hock, {Adam S.} and Tonzetich, {Zachary J.} and Schrock, {Richard R.}",

year = "2007",

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doi = "10.1021/ja068249p",

language = "English (US)",

volume = "129",

pages = "1044--1045",

journal = "Journal of the American Chemical Society",

issn = "0002-7863",

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TY - JOUR

T1 - Highly active, stable, and selective well-defined silica supported Mo imido olefin metathesis catalysts

AU - Blanc, Frédéric

AU - Thivolle-Cazat, Jean

AU - Basset, Jean Marie

AU - Copéret, Christophe

AU - Hock, Adam S.

AU - Tonzetich, Zachary J.

AU - Schrock, Richard R.

PY - 2007/2/7

Y1 - 2007/2/7

N2 - Grafting 2 [Mo(≡NAr)(=CHCMe2R1)(NR2)2] on SiO2-(700) gives selectively [≡(SiO)Mo(≡NAr)(=CHCMe2R1)(NR2)] (1), according to mass balance analysis, IR, and NMR spectroscopies. The replacement of one amido group by a siloxy group from the surface of silica dramatically increased the reactivity of the Mo complex in olefin metathesis, and the remaining amido ligand brings stability and selectivity to the system as evidenced by the absence of formation of 1-butene in the metathesis of propene and the high turnovers obtained for the metathesis of ethyl oleate.

AB - Grafting 2 [Mo(≡NAr)(=CHCMe2R1)(NR2)2] on SiO2-(700) gives selectively [≡(SiO)Mo(≡NAr)(=CHCMe2R1)(NR2)] (1), according to mass balance analysis, IR, and NMR spectroscopies. The replacement of one amido group by a siloxy group from the surface of silica dramatically increased the reactivity of the Mo complex in olefin metathesis, and the remaining amido ligand brings stability and selectivity to the system as evidenced by the absence of formation of 1-butene in the metathesis of propene and the high turnovers obtained for the metathesis of ethyl oleate.

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U2 - 10.1021/ja068249p

DO - 10.1021/ja068249p

M3 - Article

C2 - 17263381

AN - SCOPUS:33846817247

SN - 0002-7863

VL - 129

SP - 1044

EP - 1045

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 5

ER -

Highly active, stable, and selective well-defined silica supported Mo imido olefin metathesis catalysts

Abstract

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