PROCESS FOR THE PREPARATION OF ALPHA-AMINOALKYLPHOSPHONIC ACIDS

摘要

HOE 86/F 076 A process for the production of .alpha.-aminoalkylphosphonic acids or salts thereof of the formula A (A) wherein R1 represents hydrogen, alkyl having from 1 to 4 carbon atoms or CH2-C6H5 and X hydrogen or a metal cation, which comprises reacting a compound of the formula B (B) in which R1 has the same meaning as in formula A and MP? represents hydrogen or a p-valent metal cation, with a hypohalite of a p-valent metal cation, and isolating the metal salt produced or acidifying the reaction mixture obtained to produce the .alpha.-aminoalkyl-phosphonic acid.