Patent · US Expired

Process for the production of alkyl sulphonic acid hydroxy alkyl amides

US3979454A · kind A · utility

2Cited by

4References

10Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Hermann Perrey · Krefeld, DE
Harry Welz
Ralf Lange · Krefeld, DE
Hans Rudolph · Krefeld, DE
Hans J. Rosenkranz · Krefeld, DE

Key dates

Filing date	Mar 17, 1975
Grant date	Sep 7, 1976
Priority date	—
Expiry date	Mar 17, 1995

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C311/09
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Improved process for the production of alkyl sulphonic acid hydroxy alkyl amides by reacting alkyl sulphonic acid chlorides and hydroxy alkyl amines in the presence of acid binding agents wherein aqueous alkali hydroxide solution is used as acid-binding agent, the three components are applied in a substantially stoichiometric ratio, and the reaction is carried out by adding the alkyl sulphonic acid chloride to the hydroxy alkyl amine and adding to the mixture thus obtained the aqueous alkali hydroxide solutions at such a rate that the pH-value of the reaction mixture does not exceed pH 10.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.