Patent ID: 6730812
Filing Date: 2004-05-04
Classification: C07C,C07F

Abstract:
A method of preparing a phosphonium salt of the formula [R1R2R3Pâ€”CR4R5R6]X, which method comprises ball-milling a phosphine of the formula R1R2R3P with a compound of the formula XCR4R5R6;wherein R1-3 are independently selected from the group consisting of hydrogen, C1-25 alkyl, C3-8 cycloalkyl, aralkyl, and aryl; wherein R4-6 are independently selected from the group consisting of hydrogen, C1-25 alkyl, C3-8 cycloalkyl, aralkyl, and aryl; wherein X is a mono- or polyvalent anion; and wherein the method optionally takes place in one reaction vessel.