申请人:Sumitomo Chemical Company, Limited
公开号:US03969393A1
公开(公告)日:1976-07-13
A process for preparing an organic acid ester of the formula (I), ##EQU1## wherein R.sub.1 is a hydrogen atom or a methyl group, R.sub.2 is a methyl group, a vinyl group, a 2,2-dichlorovinyl group, a 1-propenyl group, a 2-methyl-1-propenyl group, a 2-carbomethoxy-1-propenyl group, a 2-methoxymethyl-1-propenyl group, a 1,3-butadienyl group, a 2-methyl-1,3-butadienyl group or a cyclopentylidenemethyl group when R.sub.1 is a hydrogen atom, and R.sub.2 is a methyl group when R.sub.1 is a methyl group; which comprises reacting an acid of the formula (II), ##EQU2## wherein R.sub.1 and R.sub.2 are each as defined above, or its reactive derivative, or mixture of the acid and its reactive derivative with a quaternary ammonium salt of the formula (III), ##SPC1## wherein X is a halogen atom, A is an alkylamine, pyridine or an N-alkylaniline.
制备公式(I)的有机酸酯的方法,其中R₁是氢原子或甲基基团,R₂是甲基基团、乙烯基团、2,2-二氯乙烯基团、1-丙烯基团、2-甲基-1-丙烯基团、2-羧甲氧基-1-丙烯基团、2-甲氧基甲基-1-丙烯基团、1,3-丁二烯基团、2-甲基-1,3-丁二烯基团或环戊烯甲基基团,当R₁为氢原子时,R₂为甲基基团;包括将公式(II)的酸或其反应衍生物或酸及其反应衍生物与公式(III)的季铵盐反应的步骤,其中R₁和R₂如上定义,X为卤素原子,A为烷基胺、吡啶或N-烷基苯胺。