Water → HCID 178514958, 화합물

반응식

[NH2:1][C:2]1[CH:6]=[CH:5][NH:4][N:3]=1.[C:7]1(=O)[O:12][C:10](=[O:11])[C:9]2=[CH:13][CH:14]=[CH:15][CH:16]=[C:8]12.O>CN(C)C=O>[NH:4]1[CH:5]=[CH:6][C:2]([N:1]2[C:10](=[O:11])[C:9]3[C:8](=[CH:16][CH:15]=[CH:14][CH:13]=3)[C:7]2=[O:12])=[N:3]1

참가 물질

반응 조건

온도: 125 °C

실험 절차

To a stirred mixture of 3-aminopyrazole (5.00 g, 60.2 mmol) dissolved in N,N-dimethylformamide (75 mL) was added phthalic anhydride (8.91 g, 60.2 mmol). After addition was complete, the mixture was stirred at 125° C. for 24 h. Upon cooling to 25° C., water (100 mL) was added, which resulted in precipitation. The white suspension was cooled (−5° C.) and stirred for 30 min. Subsequent filtration, washing with water, and suction drying afforded 2-(1H-pyrazol-3-yl)-isoindole-1,3-dione (9.36 g, 73.0%) as a white solid: LR-ES-MS m/z calculated for C11H7N3O2 [M]+ 213, observed [M+H]+ 214.