Patent ID: 6103658
Filing Date: 2000-08-15
Classification: C07C,C07D,C07F,C08F

Abstract:
A composition comprising (a) a Group 8-10 transition metal M, (b) one or more Lewis acids, and (c) a binucleating or multinucleating compound of the formula X: ##STR67## wherein the Lewis acid or acids are bound to one or more heteroatoms which are .pi.-conjugated to the donor atom or atoms bound to the transition metal M;R.sup.1 and R.sup.6 each, independently, represent sterically hindered aryl;N represents nitrogen;A and B are each, independently, a heteroatom connected mono-radical wherein the connected heteroatom is selected from Group 15 or 16; in addition, A and B may be linked by a bridging group.