Ammonia → 6-(1H-pyrazol-1-yl)pyrimidin-4-amine
Reaktionsgleichung
Cl[C:2]1[CH:7]=[C:6]([N:8]2[CH:12]=[CH:11][CH:10]=[N:9]2)[N:5]=[CH:4][N:3]=1.[NH3:13]>C(O)(C)C>[N:8]1([C:6]2[N:5]=[CH:4][N:3]=[C:2]([NH2:13])[CH:7]=2)[CH:12]=[CH:11][CH:10]=[N:9]1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A solution of 4-chloro-6-(1H-pyrazol-1-yl)pyrimidine (1.31 g, 7.25 mmol) in 2 M ammonia (20 mL, 40.0 mmol)/isopropanol was heated at 80° C. in a sealed vial for 24 h. The reaction was stored at room temperature for 4 days. The solid precipitate was filtered and dried to give 6-(1H-pyrazol-1-yl)pyrimidin-4-amine (1.15 g, 98% yield). 1H NMR (400 MHz, DMSO-d6) δ ppm 8.53 (1H, dd, J=2.52, 0.50 Hz), 8.30 (1H, d, J=0.76 Hz), 7.82 (1H, d, J=1.01 Hz), 7.19 (2H, br. s.), 6.88 (1H, d, J=1.01 Hz), 6.55 (1H, dd, J=2.64, 1.64 Hz). LCMS: RT=0.52 min, MH+=162.1.