A well-defined, silica-supported tungsten imido alkylidene olefin metathesis catalyst

Bouchra Rhers; Alain Salameh; Anne Baudouin; Elsje Alessandra Quadrelli; Mostafa Taoufik; Christophe Copéret; Frédéric Lefebvre; Jean Marie Basset; Xavier Solans-Monfort; Odile Eisenstein; Wayne W. Lukens; Lordes Pia H. Lopez; Amritanshu Sinha; Richard R. Schrock

doi:10.1021/om060279d

A well-defined, silica-supported tungsten imido alkylidene olefin metathesis catalyst

Bouchra Rhers, Alain Salameh, Anne Baudouin, Elsje Alessandra Quadrelli, Mostafa Taoufik, Christophe Copéret, Frédéric Lefebvre^*, Jean Marie Basset, Xavier Solans-Monfort, Odile Eisenstein, Wayne W. Lukens, Lordes Pia H. Lopez, Amritanshu Sinha, Richard R. Schrock

^*Corresponding author for this work

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

145 Scopus citations

Abstract

The reaction of [W(=NAr)(=CHtBu)(CH ₂tBu) ₂] (1; Ar = 2,6-iPrC ₆H ₃) with a silica partially dehydroxylated at 700 °C, SiO _2-(700)), gives syn-[(≡SiO)W(=NAr)(=CHtBu)(CH ₂tBu)] (2) as a major surface species, which was fully characterized by mass balance analysis, IR, NMR, EXAFS, and DFT periodic calculations. Similarly, complex 1 reacts with [(c-C ₅H ₉) ₇Si ₇O ₁₂SiOH] to give [(SiO)W(=NAr)(=CHtBu)(CH ₂tBu)] (2m), which shows similar spectroscopic properties. Surface complex 2 is a highly active propene metathesis catalyst, which can achieve a TON of 16 000 within 100 h, with only a slow deactivation.

Original language	English (US)
Pages (from-to)	3554-3557
Number of pages	4
Journal	Organometallics
Volume	25
Issue number	15
DOIs	https://doi.org/10.1021/om060279d
State	Published - Jul 17 2006
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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Rhers, B., Salameh, A., Baudouin, A., Quadrelli, E. A., Taoufik, M., Copéret, C., Lefebvre, F., Basset, J. M., Solans-Monfort, X., Eisenstein, O., Lukens, W. W., Lopez, L. P. H., Sinha, A., & Schrock, R. R. (2006). A well-defined, silica-supported tungsten imido alkylidene olefin metathesis catalyst. Organometallics, 25(15), 3554-3557. https://doi.org/10.1021/om060279d

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title = "A well-defined, silica-supported tungsten imido alkylidene olefin metathesis catalyst",

abstract = "The reaction of [W(=NAr)(=CHtBu)(CH 2tBu) 2] (1; Ar = 2,6-iPrC 6H 3) with a silica partially dehydroxylated at 700 °C, SiO 2-(700)), gives syn-[(≡SiO)W(=NAr)(=CHtBu)(CH 2tBu)] (2) as a major surface species, which was fully characterized by mass balance analysis, IR, NMR, EXAFS, and DFT periodic calculations. Similarly, complex 1 reacts with [(c-C 5H 9) 7Si 7O 12SiOH] to give [(SiO)W(=NAr)(=CHtBu)(CH 2tBu)] (2m), which shows similar spectroscopic properties. Surface complex 2 is a highly active propene metathesis catalyst, which can achieve a TON of 16 000 within 100 h, with only a slow deactivation.",

author = "Bouchra Rhers and Alain Salameh and Anne Baudouin and Quadrelli, {Elsje Alessandra} and Mostafa Taoufik and Christophe Cop{\'e}ret and Fr{\'e}d{\'e}ric Lefebvre and Basset, {Jean Marie} and Xavier Solans-Monfort and Odile Eisenstein and Lukens, {Wayne W.} and Lopez, {Lordes Pia H.} and Amritanshu Sinha and Schrock, {Richard R.}",

year = "2006",

month = jul,

day = "17",

doi = "10.1021/om060279d",

language = "English (US)",

volume = "25",

pages = "3554--3557",

journal = "Organometallics",

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T1 - A well-defined, silica-supported tungsten imido alkylidene olefin metathesis catalyst

AU - Rhers, Bouchra

AU - Salameh, Alain

AU - Baudouin, Anne

AU - Quadrelli, Elsje Alessandra

AU - Taoufik, Mostafa

AU - Copéret, Christophe

AU - Lefebvre, Frédéric

AU - Basset, Jean Marie

AU - Solans-Monfort, Xavier

AU - Eisenstein, Odile

AU - Lukens, Wayne W.

AU - Lopez, Lordes Pia H.

AU - Sinha, Amritanshu

AU - Schrock, Richard R.

PY - 2006/7/17

Y1 - 2006/7/17

N2 - The reaction of [W(=NAr)(=CHtBu)(CH 2tBu) 2] (1; Ar = 2,6-iPrC 6H 3) with a silica partially dehydroxylated at 700 °C, SiO 2-(700)), gives syn-[(≡SiO)W(=NAr)(=CHtBu)(CH 2tBu)] (2) as a major surface species, which was fully characterized by mass balance analysis, IR, NMR, EXAFS, and DFT periodic calculations. Similarly, complex 1 reacts with [(c-C 5H 9) 7Si 7O 12SiOH] to give [(SiO)W(=NAr)(=CHtBu)(CH 2tBu)] (2m), which shows similar spectroscopic properties. Surface complex 2 is a highly active propene metathesis catalyst, which can achieve a TON of 16 000 within 100 h, with only a slow deactivation.

AB - The reaction of [W(=NAr)(=CHtBu)(CH 2tBu) 2] (1; Ar = 2,6-iPrC 6H 3) with a silica partially dehydroxylated at 700 °C, SiO 2-(700)), gives syn-[(≡SiO)W(=NAr)(=CHtBu)(CH 2tBu)] (2) as a major surface species, which was fully characterized by mass balance analysis, IR, NMR, EXAFS, and DFT periodic calculations. Similarly, complex 1 reacts with [(c-C 5H 9) 7Si 7O 12SiOH] to give [(SiO)W(=NAr)(=CHtBu)(CH 2tBu)] (2m), which shows similar spectroscopic properties. Surface complex 2 is a highly active propene metathesis catalyst, which can achieve a TON of 16 000 within 100 h, with only a slow deactivation.

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U2 - 10.1021/om060279d

DO - 10.1021/om060279d

M3 - Article

AN - SCOPUS:33746380243

SN - 0276-7333

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SP - 3554

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JO - Organometallics

JF - Organometallics

IS - 15

ER -

A well-defined, silica-supported tungsten imido alkylidene olefin metathesis catalyst

Abstract

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