摘要:
Novel bis(aminomethyl)phosphinic acid derivatives and process for the preparation of bis(aminomethyl)phosphinic acid derivativesCompounds of the formula VI ##STR1## can be prepared by reaction of a compound of the formula IV ##STR2## with a base to give a compound of the formula Va or Vb ##STR3## and subsequent reaction with carbon nucleophiles; alternatively the compound of the formula VI is prepared by direct reaction of the compound of the formula IV e.g. with R.sup.2 Cu(CN)Li.sub.2, the above substituents having the meanings mentioned.