Method for the production of ω-aminoalkylsulphonic acids

Details Method for the production of ω-aminoalkylsulphonic acids Method for the production of ω-aminoalkylsulphonic acids

2005-05-31

2005-05-31

O'Sullivan, Peter G. (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfonic acids or salts thereof

C544S059000, C544S158000, C544S398000, C546S248000, C548S574000, C562S030000

Reexamination Certificate

active

06900350

ABSTRACT:
The invention relates to a method for the production of ω-aminoalkylsulphonic acids of general formula (I), where R1 and R2=optionally substituted alkyl groups with 1 20 C atoms and n=a whole number from 2 6, whereby an amine of formula (II), where R1 and R2 have the above meanings is reacted with an alkyl dihalide of formula (III), where n has the above meaning and X1and X2=chlorine or bromine, with addition of alkali hydroxide at a pH of 8 10. The pH is then adjusted to a value of 0 1, by addition of a hydrohalic acid and excess alkyl dihalide is separated off, before the reaction solution is adjusted to a pH of 6 7.5 with alkali liquor, alkali sulphite is added and the product (I) formed at elevated temperate.

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