申请人:Daikin Kogyo Co., Ltd.
公开号:US04582924A1
公开(公告)日:1986-04-15
An .alpha.-fluoroalkyl carboxylic acid ester of the general formula ##STR1## wherein A is R.sup.1 R.sup.2 COR.sup.3 -- or R.sup.4 CO--, wherein R.sup.1 and R.sup.2 are independently hydrogen, alkyl, alkoxyl or phenyl, with or without the formation of a common ring therebetween, R.sup.3 is hydrogen or alkyl, R.sup.4 and R are independently alkyl, and R.sub.f is fluoroalkyl. The .alpha.-fluoroalkyl carboxylic acid ester is prepared by reacting a fluoroalkyl silyl ketene acetal of the formula ##STR2## wherein R' is alkyl and R.sub.f and R are the same as defined above, with the corresponding acetal, ketone or acyl halide.
通式为##STR1##的一种.alpha.-氟烷基羧酸酯,其中A为R.sup.1 R.sup.2 COR.sup.3 --或R.sup.4 CO--,其中R.sup.1和R.sup.2独立地为氢、烷基、烷氧基或苯基,其间可以有或没有形成共轭环,R.sup.3为氢或烷基,R.sup.4和R独立地为烷基,R.sub.f为氟烷基。该.alpha.-氟烷基羧酸酯是通过将通式为##STR2##的氟烷基硅基酮缩醛(其中R'为烷基,R.sub.f和R如上定义)与相应的缩醛、酮或酰卤反应制备的。