Patent ID: 7268242
Filing Date: 2007-09-11
Classification: B01J,C07F

Abstract:
1. A method of preparing a metathesis active metal carbene complex comprising contacting a metathesis-active metal carbene complex of the formula X 1 X 2 L 1 L 2 M=CR 1 R 2 with an internal olefin ligand precursor of the formula: wherein X L any of two or three of X M is ruthenium or osmium; R R R Y is a heteroatom selected from the group oxygen (O), sulfur (S), nitrogen (N), or phosphorus (P); n is 1, in the case of a divalent heteroatom such as O or S, or 2, in the case of a trivalent heteroatom such as N or P; and Z is a group selected from hydrogen, alkyl, aryl, functionalized alkyl, functionalized aryl where the functional group(s) may independently be one or more or the following: alkoxy, aryloxy, halogen, carboxylic acid, ketone, aldehyde, nitrate, cyano, isocyanate, hydroxyl, ester, ether, amine, imine, amide, sulfide, disulfide, carbamate, silane, siloxane, phosphine, phosphate, or borate; and wherein contacting the metathesis-active metal carbene complex of the formula X