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1. (WO1999041236) SYNTHESIS OF 1-(2-SULPHOETHYL)-PYRIDINIUM BETAINE

Pub. No.:    WO/1999/041236    International Application No.:    PCT/EP1999/000431
Publication Date: Aug 19, 1999 International Filing Date: Jan 22, 1999
IPC: C07B 45/02
C07D 213/20
Applicants: BASF AKTIENGESELLSCHAFT
KAPPES, Elisabeth
BRODT, Gregor
KRÖNER, Rudi
WAGNER, Norbert
HILDEBRANDT, Sören
BOGENSTÄTTER, Thomas
Inventors: KAPPES, Elisabeth
BRODT, Gregor
KRÖNER, Rudi
WAGNER, Norbert
HILDEBRANDT, Sören
BOGENSTÄTTER, Thomas
Title: SYNTHESIS OF 1-(2-SULPHOETHYL)-PYRIDINIUM BETAINE
Abstract:
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.