2-Aminocarbonyl-5-nitrobenzofuran → HCID 13031366, Verbindung
Reaktionsgleichung
[NH2:1][C:2]([C:4]1[O:5][C:6]2[CH:12]=[CH:11][C:10]([N+:13]([O-:15])=[O:14])=[CH:9][C:7]=2[CH:8]=1)=O>O=P(Cl)(Cl)Cl>[C:2]([C:4]1[O:5][C:6]2[CH:12]=[CH:11][C:10]([N+:13]([O-:15])=[O:14])=[CH:9][C:7]=2[CH:8]=1)#[N:1]Komponenten
3
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A heterogeneous solution of 2-aminocarbonyl-5-nitrobenzofuran (0.206 g, 1 mmol) in POCl3 (5 mL) was heated at 100° C. for 24 to give a clear solution. The resulting clear solution was carefully poured over ice-water to give a solid mass which was isolated by filtration followed by washing with water to give 2-cyano-5-nitrobenzofuran. 1H NMR (DMSO-d6): δ 8.80 (d, 1H; J=2.4 Hz), 8.42 (dd, 1H, J=2.7 and 9.0 Hz), 8.27 (s, 1H), 7.99 (d, 1H, J=8.7 Hz); LCMS: purity: 98%, MS (m/e): 189 (MH+).
Aufarbeitung
- customto give a clear solution