Patent ID: 6518214
Filing Date: 2003-02-11
Classification: C07F,C08F

Abstract:
A process for synthesizing a functionalized lithium initiator which comprises the steps of (1) reacting diisopropenylbenzene with a tertiary alkyl lithium compound in an aromatic solvent at a temperature which is within the range of about 0Â° C. to about 100Â° C. to produce a dilithium initiator; and (2) reacting the dilithium initiator with a halide compound selected from the group consisting of (a) tin halides of the structural formula: (b) silicon halides of the structural formula: (c) amine halides of the structural formula: and (d) phosphorus halides of the structural foumula: wherein X represents a halogen atom, and wherein R1, R2, and R3 can be the same or different and represent alkyl groups, aryl groups, or alkoxy groups containing from 1 to about 10 carbon atoms.