Patent ID: 7145040
Filing Date: 2006-12-05
Classification: C07C,C07F

Abstract:
1. A process for the preparation of a compound of Formula I: said process comprising the steps of: methylation of 3-ethylphenol to produce 3-ethylanisole; bromination of said 3-ethylanisole at a position para to a methoxy group to produce 4-bromo-3-ethyl anisole; conversion of said 4-bromo-3-ethyl anisole, said conversion comprising (a) reacting said 4-bromo-3-ethyl anisole with n-butyl lithium to produce the lithium salt of the corresponding anion of said 4-bromo-3-ethyl anisole; (b) reacting said lithium salt of the anion of said 4-bromo-3-ethyl anisole with tri-n-butyl borate; and (c) quenching with aqueous acid.