Patent ID: 7005534

Claim:
A method for producing an hydrolysis-stable ammonium nitrile comprising reacting a first compound of the formula 1 in which R 1 , R 2 , R 3 are identical or different and are linear or branched C 1 –C 24 -alkyl groups, C 2 –C 24 -alkenyl groups or are C 1 –C 4 -alkoxy-C 1 –C 4 -alkyl groups, substituted or unsubstituted benzyl, or in which R 1 and R 2 together with the nitrogen atom to which they are bonded form a ring having 4 to 6 carbon atoms, which may be substituted by C 1 –C 5 -alkyl, C 1 –C 5 -alkoxy, C 1 –C 5 -alkanoyl, phenyl, amino, ammonium, cyano, cyanamino, chlorine or bromine and which can contain in addition to the nitrogen atom, instead of carbon atoms, one or two oxygen or nitrogen atoms, a group N—R 6 or a group R 3 —N—R 6 , in which R 6 is hydrogen, C 1 - to C 5 -alkyl, C 2 - to C 5 -alkenyl, C 2 –C 5 -alkynyl, phenyl, C 7 –C 9 -aralkyl, C 5 –C 7 -cycloalkyl, C 1 –C 6 -alkanoyl, cyanomethyl or cyano, R 4 and R 5 are hydrogen, C 1 –C 4 -alkyl, C 1 –C 4 -alkenyl, C 1 –C 4 -alkoxy-C 1 –C 4 -alkyl, phenyl or C 1 –C 3 -alkylphenyl, preferably hydrogen, methyl or phenyl, where in particular R 4 is hydrogen if R 5 is not hydrogen, and A is an anion, with a second compound of the formulae RSO 3 X, R 7 SO 4 X or R 8 CO 2 X, where R, R 7 and R 8 are C 4 –C 20 -alkyl or substituted aryl and X is an alkali metal ion, ammonium ion or hydrogen ion, in the presence of water at elevated temperature.