HCID 12266577, compound → p-Xylylenediphosphonic Acid
Reaction equation
C[O:2][P:3]([CH2:7][C:8]1[CH:13]=[CH:12][C:11]([CH2:14][P:15](=[O:20])([O:18]C)[O:16]C)=[CH:10][CH:9]=1)(=[O:6])[O:4]C>Cl>[C:11]1([CH2:14][P:15](=[O:16])([OH:18])[OH:20])[CH:10]=[CH:9][C:8]([CH2:7][P:3](=[O:2])([OH:4])[OH:6])=[CH:13][CH:12]=1Participants
3
Reactant 1
Product 1
Reagents, catalysts & solvents 1
Procedure
A mixture of bisphosphate ester (Example 19, 1.0 g, 3.1 mol) and concentrated HCl (10 ml) is heated to reflux temperature. A clear solution is obtained. The solution is heated at reflux temperature for 3.5 hours during which time a white precipitate formes. The mixture is cooled and then concentrated under reduced pressure to yield a white solid. The solid is recrystallized from water to give 520 mg of a white solid, mp >300° C.
Workup
- temperatureis heated
- temperatureto reflux temperature