Patent ID: 6372938
Filing Date: 2002-04-16
Classification: C07C

Abstract:
A method of preparing a compound of Formula I: whereinR is independently selected from hydrogen, halo, C1-C4 alkyl, alkenyl, alkynyl, C3-C6 cycloalkyl, C1-C4 alkoxy, alkenoxy, alkynoxy; and X is hydrogen, an alkali metal cation, an ammonium or a substituted ammonium; the method comprising; a) reacting a compound of Formula II; wherein R is as defined above, with a compound of Formula III; and b) reacting the resulting compound with a compound of Formula IV; Xbâ€”Zcâ€ƒâ€ƒFormula IV where X is as defined above, and Z is hydroxy, sulfate, phosphate, or alkoxy, bicarbonate, carbonate and b and c are independently 1-5.