| 摘要 |
alpha -Aminoalkylphosphonic acids or salts thereof of the formula A …<IMAGE>… in which R<1> is H, alkyl having 1-4 C atoms or CH2-C6H5 and X is H or a metal cation, are prepared by treating compounds of the formula B …<IMAGE>… in which R<1> has the same meaning as in formula A and M<p+> denotes hydrogen or a p-valent metal cation, with a hypohalite of a p-valent metal cation and isolating the metal salt formed or acidifying the reaction mixture obtained for preparing alpha -aminoalkylphosphonic acid. …<??>Some of the compounds A are biologically active and some are intermediates for preparing biologically active compounds and also other compounds. |
