Process for the preparation of sulfoalkyl quarternary salts

Details Process for the preparation of sulfoalkyl quarternary salts Process for the preparation of sulfoalkyl quarternary salts

C - Chemistry, Metallurgy

07

D

260/260, 260/298

C07D 235/04 (2006.01) C07D 235/08 (2006.01) C07D 263/56 (2006.01) C07D 263/60 (2006.01) C07D 277/64 (2006.01) C07D 277/84 (2006.01) C07D 293/12 (2006.01) C09B 23/02 (2006.01)

Patent

CA 1182115

ABSTRACT OF THE DISCLOSURE Tertiary amines corresponding to the formula Image in which Y represents hydrogen, halogen, a saturated or unsaturated aliphatic group having up to 6 carbon atoms, an alkoxy or alkylthio group, or mercapto; Z represents the atoms required to complete a heterocyclic group compri- sing at least one 5-membered or 6-membered heterocyclic ring; and m is 0 or 1; may be quaternized by heating them with a sulfoalkylating agent of this invention to a temperature of from 100 to 250°C to form a sulfobetaine corresponding to the formula III Image in which Y, Z, R and m have the meanings already indicated. The sulfoalkylating agents which are believed to be hydroxy alkane sulfonic acid sulfoalkyl esters are free from sultone and are prepared by heating a hydroxy alkane sulfonic acid of propane or butane or the corresponding sultone to a temperature in the region ' of from 80 to 180°C in the presence of water in an amount of 1 to 4 moles per mole of hydroxy alkane sulfonic acid or alkane sultone.

373134

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