Synthesis of 1-(2-sulphoethyl)-pyridinium betaine

Details Synthesis of 1-(2-sulphoethyl)-pyridinium betaine Synthesis of 1-(2-sulphoethyl)-pyridinium betaine

C - Chemistry, Metallurgy

07

D

C07D 213/20 (2006.01) C07B 45/02 (2006.01)

Patent

CA 2320173

The invention relates to a method for the production of 1-(2-sulphoethyl)- pyridinium betaine, whereby pyridine is reacted with a sulphoethylating reagent from a group comprising carbyl sulphate, ethionic acid or the salt thereof and vinyl sulphonic acid or vinyl sulphonate, and the reaction occurs in an aqueous solution or in pyridine.

L'invention concerne un procédé de production de bétaïne de 1-(2-sulfoéthyl)-pyridinium, selon lequel on fait réagir la pyridine avec un agent de sulfoéthylation sélectionné dans le groupe comprenant le sulfate de carbyle, l'acide éthionique ou son sel, et l'acide sulfovinylique ou le sulfonate de vinyle, la réaction s'effectuant en solution aqueuse ou dans la pyridine.

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