[EN] METATHESIS CATALYSTS CONTAINING ONIUM GROUPS<br/>[FR] CATALYSEURS DE MÉTATHÈSE CONTENANT DES GROUPES ONIUM
申请人:APEIRON SYNTHESIS SP Z O O
公开号:WO2013127880A1
公开(公告)日:2013-09-06
Disclosed herein is a general method for the preparation of complexes containing a quaternary onium group in an inert ligand. Some of these complexes may be represented by formula (1): Methods for the preparation of complexes of formula 1, the preparation of intermediates and the use of complexes of formula 1 in metathesis reactions and a method for conducting an olefin metathesis reaction are also described.
Disclosed herein is a general method for the preparation of complexes containing a quaternary onium group in an inert ligand. Some of these complexes may be represented by formula 1:
Methods for the preparation of complexes of formula 1, the preparation of intermediates and the use of complexes of formula 1 in metathesis reactions and a method for conducting an olefin metathesis reaction are also described.
A small family of olefin metathesis catalysts bearing a polar quaternary ammonium group is described. The presence of this group allows for efficient separation of ruthenium impurities after the reaction. Application of catalysts 9 and 11 leads to organic products of high purity, which exhibit surprisingly low ruthenium contamination levels (usually below 5 ppm) after a simple and inexpensive purification step.