Patent ID: 6765107
Filing Date: 2004-07-20
Classification: C07F

Abstract:
A method for manufacturing a phosphonate ester, wherein, the method comprises a step of:reacting, in the presence of a transition metal catalyst, an alkene compound expressed by the general formula (I): R1R2C&boxH;CR3R4â€ƒâ€ƒ(I) in the formula (I), each of R1 through R4 represents a hydrogen atom, alkyl group, cycloalkyl group, aryl group or aralkyl group respectively, wherein R1 and R4 may be combined to form an alkylene group,with a secondary phosphonate ester expressed by general formula (II): HP(O)(OR5)(OR6)â€ƒâ€ƒ(II) in the formula (II), each of R5 and R6 individually represents an alkyl group, a cycloalkyl group, aralkyl group, or an aryl group, wherein R5 and R6 may be combined to form an alkylene group with a substitute group;wherein the phosphonate ester is expressed by general formula (III): R1R2CHâ€”CR3R4[P(O)(OR5)(OR6)]â€ƒâ€ƒ(III) in the formula (III), each of R1 through R6 is the same as those of the formula (I) or (II).