[C:1]([O-])(=O)[CH3:2].[NH4+:5].C(O)=O.O1P2[O:15][P:16]3[O:18]P(O2)OP1[O:17]3>>[NH2:5][C:1]([P:16]([OH:15])(=[O:17])[OH:18])([P:16]([OH:18])(=[O:15])[OH:17])[CH3:2]The procedure was as described in Example 1, but a blend of 40.5 g (0.525 mol) ammonium acetate and 23 g (0.5 mol) formic acid was reacted with 55 g (0.25 mol) P4O6. 45 g 1-aminoethane-1,1-diphosphonic acid was obtained.
불러오는 중…