Process for producing halogenophenoxyfatty acid derivatives...

Details Process for producing halogenophenoxyfatty acid derivatives... Process for producing halogenophenoxyfatty acid derivatives...

C - Chemistry, Metallurgy

07

C

C07C 235/18 (2006.01) C07C 51/363 (2006.01) C07C 59/70 (2006.01) C07C 67/307 (2006.01) C07C 69/736 (2006.01) C07C 231/12 (2006.01) C07C 235/20 (2006.01) C07C 235/24 (2006.01) C07C 253/30 (2006.01) C07C 255/16 (2006.01) C07C 255/37 (2006.01) C07C 323/41 (2006.01) C07C 327/22 (2006.01) C07D 295/185 (2006.01)

Patent

CA 2091864

Disclosed are a process for producing a halogenophenoxyfatty acid derivative represented by the formula (I): (see fig. I) [wherein R is CN, -CONR3R4 (in which R3 and R4 are H, alkyl, phenyl, benzyl or the like or together form alkylene) or -COAR5 (in which R5 is H, alkyl, phenyl, benzyl or the like and A is O or S), R1 and R2 are H or alkyl, X is halogen or alkyl and Y is halogen] which comprises selectively halogenating a phenoxyfatty acid represented by the following formula: (see fig. II) with a halogenating agent; and a novel halogenophenoxyfatty acid derivative represented by the formula: (see fig. III) [wherein R', R1', R2', X' and Y' have the meanings similar to R, R1, R2, X and Y]. The halogenophenoxyfatty acid derivative is useful as intermediate for producing herbicide or the like.

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