Patent ID: 6281303
Filing Date: 2001-08-28
Classification: C07C,C08F

Abstract:
A process for the preparation of polyolefins, which comprises contacting one or more monomers of the formula R'CH=CHR"" with a transition metal complex of the formula (I): ##STR21##wherein R', R"" are H, hydrocarbyl or substituted hydrocarbyl, and may be linked to form a cyclic olefin;M is Co(II), Co(III), Fe(II), Fe(III), Ru(II), Ru(III), Mn(II) or Mn(III);T is H, hydrocarbyl, substituted hydrocarbyl, or other group capable of inserting an olefin;L is an olefin or a neutral base, said base having a donating atom, where the donating atom is nitrogen, oxygen, or sulfur capable of being displaced by an olefin; in addition, T and L may be taken together to form a .pi.-allyl or a .pi.-benzyl group;A.sup.- is a weakly coordinating anion; andX, Y, and Z are selected from various functional groups or combinations of such functional groups selected from the group consisting of ##STR22##wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 are each independently H, hydrocarbyl, substituted hydrocarbyl, a heteroatom connected monoradical wherein the connected heteroatom is selected from the group consisting of elements of Group 15 and 16, and silicon, and may also be linked by a bridging hydrocarbyl group or to one another or to R.sup.20 -R.sup.23 to form a covalent bond;R.sup.20, R.sup.21, R.sup.22 and R.sup.23 are each independently hydrocarbyl, substituted hydrocarbyl or silyl, and may also be linked to R.sup.1 -R.sup.7 to form a covalent bond;E is either O or S;G.sup.1, G.sup.2, and G.sup.3 are independently C or N, provided that when G.sup.1, G.sup.2, and G.sup.3 are N, only hydrocarbyl and substituted hydrocarbyl substituents are covalently bound to N, and further provided that the octet rule is satisfied in said atom;G.sup.4 and G.sup.5 are independently C, N, O, or S, provided that when they are O, N, and S, only hydrocarbyl and substituted hydrocarbyl substituents are covalently bound to O, N or S, and further provided that the octet rule is satisfied in said atom;further provided that X, Y and Z are taken together to form groups of a formula other than the formula ##STR23##wherein R.sup.31, R.sup.32, R.sup.33, R.sup.34 and R.sup.35 are each independently H, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl, or substituted heterohydrocarbyl, or an inert functional group; andR.sup.36 and R.sup.37 are aryl, substituted aryl, H, halogen, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl, or substituted heterohydrocarbyl.