Patent ID: 6410810
Filing Date: 2002-06-25
Classification: C07F

Abstract:
A method of preparing a hydrocarbon solution of a mixture of bis- and tris(fluoroaryl)borane compounds expressed as: where each of R1, R2, R3, R4, and R5 independently represents one of a hydrogen atom, a fluorine atom, a hydrocarbon group, and an alkoxy group provided that at least one of R1-R5 represents a fluorine atom, X represents one of a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom, and wherein n represents 2 for the bis(fluoroaryl)borane compounds and 3 for the tris(fluoroaryl)borane compounds, wherein a hydrocarbon solution of said (fluoroaryl)borane compounds having a concentration of said tris(fluoroaryl)borane compounds in a range between 1 wt % and 10 wt % is prepared by combining said (fluoroaryl)borane compounds with a hydrocarbon solvent A to form a slurry, containing a mixture of (fluoroaryl)borane compounds having both n=2 and n=3, and then dissolving said slurry into a hydrocarbon solvent B in a virtually air-tight vessel.