Piperazine → 3-(1-Piperazinyl)-2,6,7-trichloroquinoxaline
Reaktionsgleichung
[NH:1]1[CH2:6][CH2:5][NH:4][CH2:3][CH2:2]1.[Cl:7][C:8]1[C:17](Cl)=[N:16][C:15]2[C:10](=[CH:11][C:12]([Cl:20])=[C:13]([Cl:19])[CH:14]=2)[N:9]=1>CCO>[N:1]1([C:17]2[C:8]([Cl:7])=[N:9][C:10]3[C:15]([N:16]=2)=[CH:14][C:13]([Cl:19])=[C:12]([Cl:20])[CH:11]=3)[CH2:6][CH2:5][NH:4][CH2:3][CH2:2]1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
Piperazine (0.69 g, 8.06 mmol) was added to a stirred suspension of 2,3,6,7-tetrachloro-quinoxaline (1.08 g, 4.03 mmol) in EtOH (125 mL) at room temperature. The mixture was stirred at room temperature for 8 h and filtered to give the product as a pale yellow solid: yield 0.88 g (69%); mp >300° C. MS m/z 316/318 (M)+.