Process for preparing hydroxyalkylaminosulfonic acids

Details Process for preparing hydroxyalkylaminosulfonic acids Process for preparing hydroxyalkylaminosulfonic acids

1984-04-13

1986-04-15

Siegel, Alan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

560155, 560170, 252355, C07C14302, C07C10130

Patent

active

045826510

ABSTRACT:
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.

REFERENCES:
patent: 2830082 (1958-04-01), Sexton
patent: 3171787 (1965-03-01), Cahn
patent: 3196173 (1965-07-01), Willmund
patent: 3465033 (1969-09-01), Lincoln
patent: 3474038 (1969-10-01), Sepulveda
patent: 4481150 (1984-11-01), Ishii

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