PREPARATION OF ELECTALLY BRUSHED COMPLEXES OF METALOCENE BRIDGES THAT HAVE INDENILE LEGANDS NOT REPLACED OR REPLACED IN POSITION 2.

摘要

A process for the preparation of racemic metallocene complexes of the formula (I) ** see formula ** where ** see formula ** is a divalent group selected from ** see formula ** and ** see formula ** is a divalent group selected from ** see formula ** and the substituents and indices have the following meaning: where M is titanium, zirconium, or hafnium, R1, R2, R3, R4, R5, R6, R9, R10, R11, R1 '', R2 '', R3 '', R4 '', R5 '', R6 '', R9 '', R10 '', R11 '' are identical or different and are each hydrogen, halogen, C1-C20 alkyl , 3- to 8-membered cycloalkyl which can in turn support a C1-C10 alkyl group as a substituent, C6-C15 aryl, alkylaryl having 1 to 10 carbon atoms in the alkyl part and 6 to 20 carbon atoms in the aryl part, arylalkyl having 1 to 10 carbon atoms in the alkyl part and 6 to 20 carbon atoms in the aryl part, -OR13, -SR13, -N (R13) 2, -P (R13) 2 , or Si (R13) 3, where R 1 3 are identical or different and each are C1-C10 alkyl, C6-C15 aryl, C3-C10 cycloalkyl, alkylaryl, where the mentioned radicals may be partially or completely substituted by heteroatoms, R8, R12, R8 '', R12 '' they are identical or different and each are C1-C10 alkyl, Y is oxygen, R 7 is a group - [Z (R 15) (R 16)] m-, where Z can be identical or different and are each silicon, germanium, tin or carbon, R 15, R 16 are each hydrogen, C1-C10 alkyl, C3-C10 cycloalkyl or C6-C15 aryl, m is 1, 2, 3 or 4, by means of the reaction of a metal complex of transition of formula (II) ** see formula ** X are identical or different and are each hydrogen, halogen, C1-C10 alkyl, C6-C15 aryl, alkylaryl having 1 to 10 carbon atoms in the alkyl part and from 6 to 20 carbon atoms in the aryl part, -OR 17 or -NR 17 2, where R 17 are identical or different and are each C 1 -C 10 alkyl, C 6 -C 15 aryl, C 3 cycloalkyl -C 10, alkylaryl, n is an integer from 1 to 4 and corresponds to the valence of M minus 2, with cyclopentadienyl derivatives of the formula (III) ** see formula ** where M 2 is an alkali metal ion or an alkaline earth metal ion, and p is 1 when M 2 is an alkaline earth metal ion and is 2 when M 2 is an alkanyl metal ion, and heating the resulting reaction mixture at a temperature in the range between -78 and + 250 ° C .