申请人:Ciba-Geigy Corporation
公开号:US05449779A1
公开(公告)日:1995-09-12
A process for preparing a compound of the formula (I) ##STR1## in which R.sub.1 is e.g. hydrogen, R.sub.2 is e.g. C.sub.2 -C.sub.12 alkylene and R.sub.3 is e.g. C.sub.1 -C.sub.18 alkyl; which process comprises reacting, in water, in the absence of an organic solvent, a compound of the formula (II) Cl--COOR.sub.3 (II) wherein R.sub.3 is as defined above with a compound of the formula (III) ##STR2## where R.sub.1 is e.g. as defined above and R.sub.2 ' is e.g. as defined above for R.sub.2, at a temperature of from 0.degree. to 60.degree. C., 1 to 1.5 mol of the compound of the formula (II) being used per mol --NH-- group in the compound of the formula (III); and neutralizing the hydrochloric acid formed with an inorganic base.
将公式(I)的化合物制备过程翻译成中文:其中R.sub.1为例如氢,R.sub.2为例如C.sub.2 -C.sub.12烷基和R.sub.3为例如C.sub.1 -C.sub.18烷基;该过程包括在水中,在无机溶剂的情况下,将公式(II)的化合物Cl--COOR.sub.3(II)(其中R.sub.3如上定义)与公式(III)的化合物反应##STR2##其中R.sub.1例如如上定义,R.sub.2'例如如上定义为R.sub.2,反应温度为0°C至60°C,每摩尔公式(III)中的--NH--基团使用1至1.5摩尔的公式(II)的化合物,然后用无机碱中和生成的盐酸。