Patent ID: 6274752
Filing Date: 2001-08-14
Classification: B01J,C07F,C08F,C08G,Y10S

Abstract:
A catalytic complex selected from the group consisting of:A) a complex of the formula [CpCp'MMe(.mu.-Me)MeMCpCp'].sup..sym. [MeBR'R"".sub.2 ].sup..crclbar.B) a complex of the formula [CpCp'MH(.mu.-H)HMCpCp'].sup..sym. [MeBR'R"".sub.2 ].sup..crclbar.C) a complex of the formula [CpMMe.sub.2 ].sup..sym. [MeBR'R"".sub.2 ].sup..crclbar.D) a complex of the formula [C.sub.5 H.sub.m R.sub.4-m XNRMMe].sup..sym. [MeBR'R"".sub.2 ].sup..crclbar.E) a complex of the formula [CpCp'MMe].sup..sym. [MeBR'R"".sub.2 ].sup..crclbar.where:Cp and Cp' each is C.sub.5 H.sub.n R.sub.5-n where n is 0-5, or indenyl;R is an alkyl or benzyl or aryl or silyl group, each having 20 or less carbon atoms;M is Th, Zr, Hf, or Ti;Me is methyl;B is boron;H is hydrogen;R' is fluorinated biphenyl;R"" is a fluorinated phenyl, fluorinated biphenyl, or fluorinated polycyclic fused ring group;m is 0-4;X is R'"".sub.2 Si, R'"" being alkyl or aryl, either one having 10 or less carbon atoms; andN is nitrogen.