Patent ID: 6458982
Filing Date: 2002-10-01
Classification: C08F

Abstract:
A compound of the formula (II), whereM is a metal of group 4 of the Periodic Table of the Elements, R3, R4, R5 and R6 are identical or different and are each hydrogen, C1-C18-alkyl, C2-C10-alkenyl, C3-C15-alkylalkenyl, C6-C18-aryl, C4-C24-heteroaryl, C4-C24-alkylheteroaryl, C7-C20-arylalkyl, C7-C20-alkylaryl, fluorinated C1-C12-alkyl, fluorinated C6-C18-aryl, fluorinated C7-C20-arylalkyl or fluorinated C7-C20-alkylaryl, wherein at least one substituent R3, R4, R5 or R6 is a C4-C24-heteroaryl, R7, R8 are identical or different and are each a hydrogen atom, a halogen atom C1-C18-alkyl, C2-C10-alkenyl, C3-C15-alkylalkenyl, C6-C18-aryl which may be substituted or unsubstituted, C5-C18-heteroaryl, C7-C20-arylalkyl, C7-C20-alkylaryl, fluorinated C6-C18-aryl, fluorinated C1-C12-alkyl, fluorinated C7-C20-arylalkyl or fluorinated C7-C20-alkylaryl, and two radicals R7 or R8 may form a monocyclic or polycyclic ring system which may in turn be substituted or unsubstituted, X is a halogen atom, l,l are identical or different and are each an integer from zero to 4.