Ximo Ag

Elevance Renewable Sciences, Inc.

Verbio Vereinigte Bioenergie Ag

Wilmar Trading Pte Ltd.

Jeno Varga

Georg Emil Frater

Levente Ondi

Emmanuel Robe

Florian Toth

Krisztian Lorincz

Agota Bucsai

Csaba Hegedus

Christophe Coperet

Victor Mougel

Steven Alan Cohen

Keith Michael Wampler

Matthew P Conley

Georg E Frater

The invention relates to a method of forming an olefin from a first olefin and a second olefin in a metathesis reaction, comprising step (i): 

Metathesis catalysts and reactions using the catalysts

Method of making an immobilized tungsten catalyst comprising or consisting of (&#x2261;SiO)W(&#x2550;O)(&#x2550;CRR)(Ror R)(L), comprising at least the following step (i): (i) reacting silica (Si02) with a tungsten oxo alkylidene complex comprising or consisting of (R)(R)W(&#x2550;O)(&#x2550;CRR)(L), preferably wherein &#x2550;CRRis selected from &#x2550;CHC(CH)or &#x2550;CH(C(CH))CHand Rand Rare independently selected from pyrrol-1-yl, 2,5-dimethylpyrrol-1-yl, or 2,5-diphenylpyrrol-1-yl, or &#x2014;OR, wherein R is a six membered or 10 membered aryl ring, optionally substituted.

Immobilized metathesis tungsten oxo alkylidene catalysts and use thereof in olefin metathesis

A method is provided of forming an olefin from a first olefin and a second olefin in a metathesis reaction, comprising reacting the first olefin with the second olefin in the presence of a compound that catalyzes the metathesis reaction such that the molar ratio of the compound to the first or the second olefin is from 1:500 or less, and the conversion of the first or the second olefin to the olefin is at least 30%.

Method of forming an olefin from a first olefin and a second olefin in a metathesis reaction, comprising step (i): (i) reacting the first olefin with the second olefin in the presence of a silica supported Mo- or W-alkylidene catalyst, wherein the first olefin and the second olefin are different from one another.

Use of immobilized molybdenum- and tungsten-containing catalysts in olefin cross metathesis

The invention relates to a method of forming an olefin from a first olefin and a second olefin in a metathesis reaction, comprising step (i): (i) reacting the first olefin with the second olefin in the presence of a compound that catalyzes said metathesis reaction such that the molar ratio of said compound to the first or the second olefin is from 1:500 or less, and the conversion of the first or the second olefin to said olefin is at least 50%, characterized in that as compound that catalyzes said metathesis reaction a compound of formula (A) is used: wherein M is Mo or W; Ris aryl, heteroaryl, alkyl, or heteroalkyl; optionally substituted; Rand Rcan be the same or different and are hydrogen, alkyl, alkenyl, heteroalkyl, heteroalkenyl, aryl, or heteroaryl; optionally substituted; Ris alkyl, alkoxy, heteroalkyl, aryl, heteroaryl, silylalkyl, silyloxy, optionally substituted; and Ris a residue R&#x2014;X&#x2014;, wherein X&#x2550;O and Ris aryl, optionally substituted; or X&#x2550;S and Ris aryl, optionally substituted; or X&#x2550;O and Ris (R, R, R)Si; wherein R, R, Rare alkyl or phenyl, optionally substituted; or X&#x2550;O and Ris (R, R, R)C, wherein R, R, Rare independently selected from phenyl, alkyl; optionally substituted; and to the catalysts used in the method. 

A method for treating a substrate prior to a metathesis reaction includes treating the substrate with a first agent configured to mitigate potentially adverse effects of one or more contaminants in the substrate on a catalyst used to catalyze the metathesis reaction. The treating reduces a level of the one or more contaminants by an amount sufficient to enable the metathesis reaction to proceed at a substrate-to-catalyst molar ratio of at least about 7,500 to 1. Methods for metathesizing substrates are described.

Growing community of inventors

Budapest, Hungary

Jeno Varga