Patent ID: 8846938
Filing Date: 2014-09-30
Classification: B01J,C07F,C08F

Abstract:
1. Method for the preparation of a ruthenium-based carbine catalyst with a chelating alkylidene ligand comprising the reaction of a ruthenium (II)-alkylidene complex with an olefin derivative according to the equation: wherein L is a saturated H2IMes (=1,3-dimedityl-imidazolidine-2-ylidene) or unsaturated IMes (=1,3-dimesityl-imidazole-2-ylidene) ligand, X Y Py is a substituted or unsubstituted pyridine ligand, R a, b, c and d are, independently from each other, hydrogen, C Z is a heterodonor atom selected from the group consisting of oxygen, sulphur, and nitrogen, or a group comprising a heterodonor atom, R