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    • 2. 发明授权
    • Process for preparing hydroxyalkylaminosulfonic acids
    • 制备羟烷基氨基磺酸的方法
    • US4481150A
    • 1984-11-06
    • US412977
    • 1982-08-27
    • Keizou IshiiRyuzo MizuguchiShinichi IshikuraTamotsu Yoshioka
    • Keizou IshiiRyuzo MizuguchiShinichi IshikuraTamotsu Yoshioka
    • C07C309/14C07C143/02
    • C07C309/14
    • A process for preparing hydroxyalkylaminosulfonic acids which comprises reacting a hydroxyalkylamine of the formula: ##STR1## wherein R.sub.1 is a C.sub.1 -C.sub.20 hydroxyalkyl group optionally containing --O-- or --COO-- in the alkyl chain, and R.sub.2 is a hydrogen atom, a C.sub.1 -C.sub.20 hydroxyalkyl group optionally containing --O-- or --COO-- in the alkyl chain, or a lower alkyl group, with an alkali metal salt of an .alpha.,.beta.-unsaturated sulfonic acid of the formula: ##STR2## wherein R.sub.3 is a hydrogen atom or a methyl group and M is an alkali metal, followed by elimination of the alkali metal to give a hydroxyalkylaminosulfonic acid of the formula: ##STR3## wherein R.sub.1 and R.sub.3 are each as defined above and R.sub.2 ' is a hydrogen atom, a C.sub.1 -C.sub.20 hydroxyalkyl group optionally containing --O-- or --COO-- in the alkyl chain, a lower alkyl group or a group of the formula: ##STR4## wherein R.sub.3 is as defined above.
    • 一种制备羟烷基氨基磺酸的方法,其包括使下式的羟烷基胺反应:其中R1是在烷基链中任选含有-O-或-COO-的C1-C20羟基烷基,R2是氢原子 ,在烷基链或低级烷基中任选含有-O-或-COO-的C1-C20羟烷基,与下式的α,β-不饱和磺酸的碱金属盐反应:(III) )其中R3是氢原子或甲基,M是碱金属,然后除去碱金属,得到下式的羟烷基氨基磺酸:其中R 1和R 3各自如上所定义,和 R2'是氢原子,在烷基链中任选地含有-O-或-COO-的C 1 -C 20羟基烷基,低级烷基或下式的基团:其中R 3如上所定义。