| abstract |
A phenoxycarboxylic acid derivative having the formula <IMAGE> (III) wherein R represents <IMAGE> and X1 represents a hydrogen atom, a halogen atom, a lower alkyl group, trifluoromethyl group, nitro group or cyano group and X2 represents a hydrogen atom, a halogen atom, a lower alkyl group, nitro group or cyano group, R' represents <IMAGE> <IMAGE> and R1 and R2 are the same and different and respectively represent hydrogen atom or a lower alkyl group, is produced by reacting a phenol compound having the formula <IMAGE> (I) with a halogen compound having X-R' wherein X represents a halogen atom in the presence of a base. The reaction is carried out in the presence of a quarternary ammonium salt or a quaternary phosphonium salt in a nonpolar solvent. |