Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Nitrilkautschuken mit verringertem Molekulargewicht durch Metathese eines ersten Nitrilkautschuks in Gegenwart spezieller Ruthenium-Komplexkatalysatoren, die besondere N-heterocyclische Carben- Liganden aufweisen.
Abstract:
The present invention relates to a process for preparing a terpenoid derivative, the process comprising a metathesis of an olefin and a terpenoid, and to terpenoid derivatives prepared with said process.
Abstract:
The present invention concerns a supported ionic liquid phase catalyst comprising a support and a catalyst dispersed in an ionic liquid on said support. The support comprises a biopolymer, preferably chitosan or alginate, and the catalyst is a metathesis catalyst, preferably a pyridinium-tagged Grubbs-Hoveyda II catalyst. Further, the present invention concerns a method of performing an olefin metathesis, in particular RCM. The method of the invention comprises the use of a supported ionic liquid phase catalyst. Furthermore, the present invention concerns the use of a supported ionic liquid phase catalyst in olefin metathesis reactions. Finally, the present invention also concerns an ionic liquid exhibiting a suitable adsorption to a biopolymer. The ionic liquid comprises [ButylMethyl-lmidazolium]X salts, wherein X is selected in the group consisting of PF6 or BF4 or PF3(C2F5)3.
Abstract:
Diazaphosphacycles comprising compounds having the formula XI : and salts of the compound are provided, wherein the variables W, T, R1, R14, and R15 are as described herein. Transition metal catalysts incorporating such diazaphosphacycles and methods of use thereof are also disclosed. There are further provided compositions comprising diazaphosphacycles covalently attached to a solid support and methods of use thereof.
Abstract:
The present invention relates to a process for preparing a terpenoid derivative, the process comprising a metathesis of an olefin and a terpenoid, and to terpenoid derivatives prepared with said process.
Abstract:
Diazaphosphacycles comprising compounds having the formula XI : and salts of the compound are provided, wherein the variables W, T, R1, R14, and R15 are as described herein. Transition metal catalysts incorporating such diazaphosphacycles and methods of use thereof are also disclosed. There are further provided compositions comprising diazaphosphacycles covalently attached to a solid support and methods of use thereof.
Abstract:
La présente invention se rapporte notamment à un procédé de greffage d'oligopeptides dans des matériaux hybrides poreux, notamment les «Metal- Organic Framework» (MOFs). La présente invention se rapporte également aux matériaux hybrides poreux fonctionnalisés en surface externe et dans leurs pores susceptibles d'être obtenus par ledit procédé de greffage. La présente invention trouve notamment des applications dans la catalyse asymétrique, la séparation énantiosélective, et les bio-détecteurs.
Abstract:
The present invention concerns a supported ionic liquid phase catalyst comprising a support and a catalyst dispersed in an ionic liquid on said support. The support comprises a biopolymer and the catalyst is a metathesis catalyst. Further, the present invention concerns a method of performing an olefin metathesis. The method of the invention comprises the use of a supported ionic liquid phase catalyst. Furthermore, the present invention concerns the use of a supported ionic liquid phase catalyst in olefin metathesis reactions. Finally, the present invention also concerns an ionic liquid exhibiting a suitable adsorption to a biopolymer. The ionic liquid comprises [ButylMethyl-Imidazolium]X salts, wherein X is selected in the group consisting of PF6 or BF4 or PF3(C2F5)3.