反应详情

1-Phenylpyrazolidin-3-one (8.1 g) was suspened in dry toluene (100 ml), followed by addition of phosphoryl chloride (7.0 ml) and the mixture stirred for 1 hour at 85° . When cool the toluene was decanted from the solid and solvent removed in vacuo to give the sub-title compound, (6.9 g), mp 92°-93°.

1. customwas decanted from the solid and solvent
2. customremoved in vacuo