Novel fluorine-containing carboxylic acid compounds of formula (II) are provided that can be reacted together with a base to produce industrially useful 3-(2-chloro-2-fluorovinyl)-2,2-dimethyl cyclopropanecarboxylic acid compounds of formula (I). The fluorine-containing carboxylic acid compounds of formula (II), if so desired, can be produced by reacting together a carboxylic acid compound of formula (III) and trichlorofluoromethane. In each of the formulas (I), (II), and (III), R is a lower alkyl group or a hydrogen atom.
本发明提供了新颖的式(II)含
氟羧酸化合物,可与碱反应生成工业上有用的式(I)3-(2-
氯-2-
氟乙烯基)-2,2-二
甲基环丙烷羧酸化合物。如果需要,式(II)的含
氟羧酸化合物可以通过式(III)的
羧酸化合物与三
氯氟甲烷反应制得。在式 (I)、(II) 和 (III) 中,R 均为低级烷基或氢原子。