公开(公告)号：GB1049770A

公开(公告)日：1966-11-30

申请号：GB15664

申请日：1964-01-02

Applicant: BASF AG

Inventor： HUENIC SIEGFRIED ,  LUECKE EBERHARD

IPC: C08G69/08

Abstract: The invention comprises omega-aminoketocarboxylic acids of the general Formula (I) wherein m is an integer of 5 to 15 and n is an integer of 5 to 12 with the proviso that m + n is between 14 and 22, and a process for the preparation of acids of said general formula without said proviso, and salts thereof, by subjecting compounds of the general Formula (II) wherein m is 5 to 15 and n is 5 to 12, to acid or alkaline hydrolysis. The reaction is preferably performed at a temperature of 80 DEG to 110 DEG C. and at a pH other than pH 1 to 13 using, for example, aqueous solutions of, for example, sodium, potassium or calcium hydroxide, potassium carbonate, hydrogen chloride or bromide, sulphuric acid or phosphoric acid, or a solution of sodium hydroxide in ethylene glycol monomethylether. The reaction mixture may be worked up by extraction with an organic solvent, acidification of the aqueous phase if it is alkaline, and evaporation to dryness of the aqueous phase; the residue, if desired, being extracted with a hot polar organic solvent, the extract evaporated to dryness, and the residue crystallized from hot acid, alkali or water. The compounds of Formula (II) may be prepared by the process described in Specification 1,049,769.