Preparation of silicon-bridged metallocene compounds

Details Preparation of silicon-bridged metallocene compounds Preparation of silicon-bridged metallocene compounds

2006-02-21

2006-02-21

Nazario-Gonzalez, Porfirio (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

C556S012000, C534S015000, C502S103000, C502S117000, C526S943000, C987S002000

Reexamination Certificate

active

07002031

ABSTRACT:
A process for obtaining silicon-bridged metallocene compounds comprising the following steps:a) reacting, at a temperature of between −10° C. and 70° C., the starting ligand with about 2 molar equivalents of an alkylating agent;b) after the reaction has been completed, adding at least 2 molar equivalents of an alkylating agent that can be also different from the first one; andc) reacting, at a temperature of between −10° C. and 70° C., the product obtained from step b) with at least 1 molar equivalent of a compound of formula ML′s, wherein M is a transition metal; s is an integer corresponding to the oxidation state of the metal; and L′ is an halogen atom selected from chlorine, bromine and iodine.

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