A process for producing of an aminoalkylsulfonic acid and a...

C - Chemistry – Metallurgy – 07 – C

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C07C 309/14 (2006.01) C07C 303/22 (2006.01) C07C 303/32 (2006.01)

Patent

CA 2498039

A process for producing an aminoalkylsulfonic acid represented by the general formula [2]: [2] (wherein R1 and R2 each represents hydrogen, aryl, etc.; and R3 and R4 each represents hydrogen or alkyl), characterized by reacting a solution of a compound represented by the general formula [1]: [1] (wherein M represents an alkali metal, etc.) in a water-soluble organic solvent selected among alcohols, carboxylic acids, and dimethylformamide with an organic acid; and a method of salt exchange for an aminoalkylsulfonic acid salt represented by the general formula [1']: [1'] (wherein M' represents an alkali metal, etc.), characterized by reacting the compound represented by the general formula [2] with a hydroxide represented by the general formula [6]: [6] in an alcohol or water.

Cette invention se rapporte à un procédé servant à produire un acide aminoalkylsulfonique représenté par la formule générale [2] (où R?1¿ et R?2¿ représentent chacun hydrogène, aryle, etc. ; et R?3¿ et R?4¿ représentent chacun hydrogène ou alkyle) et qui consiste à mettre en réaction une solution d'un composé représenté par la formule générale [1] (où M représente un métal alcalin, etc.) dans un solvant organique hydrosoluble choisi parmi des alcools, des acides carboxyliques et du diméthylformamide avec un acide organique ; ainsi qu'à un procédé d'échange de sel pour un sel d'acide aminoalkylsulfonique représenté par la formule générale [1'] (où M' représente un métal alcalin, etc.) consistant à mettre en réaction le composé représenté par la formule générale [2] avec un hydroxyde représenté par la formule générale [6], dans un alcool ou dans de l'eau.

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