Chlorosuccinimide → HCID 67260717, Verbindung
Reaktionsgleichung
[CH2:1]([N:8]1[C:16]2[CH:15]=[CH:14][CH:13]=[C:12]([NH2:17])[C:11]=2[C:10]([CH2:18][CH3:19])=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[Cl:20]N1C(=O)CCC1=O>C(#N)C>[CH2:1]([N:8]1[C:16]2[CH:15]=[CH:14][C:13]([Cl:20])=[C:12]([NH2:17])[C:11]=2[C:10]([CH2:18][CH3:19])=[N:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 60 °C
Versuchsvorschrift
To a reaction vial was added 1-benzyl-3-ethyl-1H-indazol-4-amine (20.0 mg, 0.0796 mmol) (prepared as in Example 2, steps A-B), N-chlorosuccinimide (12.8 mg, 0.0955 mmol) and acetonitrile (0.4 mL). The reaction vial was sealed and heated, with magnetic stirring, at 60° C. for 4 hours. The mixture was stirred at ambient temperature for 16 hours. The solvent was removed under a stream of nitrogen. The resulting material was purified using preparative thin layer chromatography on silica, eluting with 5% methanol in chloroform containing 0.5% ammonium chloride solution. The desired mono-chlorination product, 1-benzyl-5-chloro-3-ethyl-1H-indazol-4-amine (MS, APCI, m/z=286.1, M+H) was isolated as lower eluting component (8.7 mg).