Conley, Matthew P.Mougel, VictorPeryshkov, Dmitry V.Forrest, William P. Jr.Gajan, DavidLesage, AnneEmsley, LyndonCoperet, ChristopheSchrock, Richard R.2015-01-082015-01-082015-01-08201310.1021/ja410052uhttps://infoscience.epfl.ch/handle/20.500.14299/109959WOS:000329137300006Grafting (ArO)(2)W(=O)(=CHtBu) (ArO = 2,6-mesitylphenoxide) on partially dehydroxylated silica forms mostly [( SiO)W(=O)(=CHtBu)(OAr)] along with minor amounts of [( SiO)W(=O)(CH(2)tBu)-(OAr)(2)] (20%), both fully characterized by elemental analysis and IR and NMR spectroscopies. The well-defined oxo alkylidene surface complex [( SiO)W(=O)(=CHtBu)OAr] is among the most active heterogeneous metathesis catalysts reported to date in the self-metathesis of cis-4-nonene and ethyl oleate, in sharp contrast to the classical heterogeneous catalysts based on WO3/SiO2.text::journal::journal article::research article