反应详情

3.0 g (0.0068 mol) of N-(3-phenoxypropyl)aminomethanediphosphonic acid tetraethyl ester are dissolved in 20 ml of dichloromethane, and 4.4 ml (0.0343 mol) of trimethylbromosilane are added. After 72 hours at room temperature, the solvent is removed under reduced pressure. The remaining oil is dissolved in warm 95% aqueous methanol. On cooling, N-(3-phenoxypropyl)aminomethanediphosphonic acid of m.p. 226°-228° (decomp.) is obtained.

1. customthe solvent is removed under reduced pressure
2. dissolutionThe remaining oil is dissolved in warm 95% aqueous methanol
3. temperatureOn cooling