A process for producing an aminoalkylsulfonic acid of formula [2]:
wherein R
1
and R
2
are each independently hydrogen, alkyl, aryl or aralkyl; and R
3
and R
4
are each independently hydrogen or alkyl, comprising reacting an aminoalkylsulfonate salt of formula [1]:
wherein M is alkali metal, organic ammonium or ammonium ion; and R
1
to R
4
are as described above, an aqueous solution thereof, or a solution dissolving any one of them in a water-soluble organic solvent, selected from alcohols having 1 to 3 carbon, carboxylic acids having 2 to 12 carbon and dimethylformamide, with an organic acid; and
a method of salt exchange for an aminoalkylsulfonate salt of formula [1′]:
wherein M′ is alkali metal, organic ammonium or ammonium ion; and R
1
and R
4
are as described above, comprising reacting the aminoalkylsulfonate salt formula [2] with a hydroxide of formula [6]:
M′OH [6]
wherein M′ is as described above, in alcohol or water.
一种生产
化学式[2]的
氨基烷基
磺酸的方法:其中R1和R2各自独立地表示氢、烷基、芳香基或芳基烷基;R3和R4各自独立地表示氢或烷基,包括反应
化学式[1]的
氨基烷基
磺酸盐:其中M为碱
金属、有机
铵或
铵离子;R1至R4如上所述,其
水溶性有机溶剂中的
水溶性溶液或溶解其中任何一种的溶液,所选的有机酸;以及
化学式[1']的
氨基烷基
磺酸盐的盐交换方法:其中M'为碱
金属、有机
铵或
铵离子;R1和R4如上所述,包括将
氨基烷基
磺酸盐
化学式[2]与
化学式[6]的氢氧化物反应:M'OH [6],其中M'如上所述,在醇或
水中。