Sulfuric Acid → 2-(4-Carbamylphenyl)oxazolo[5,4-b]pyridine
Reaktionsgleichung
[C:1]([C:3]1[CH:8]=[CH:7][C:6]([C:9]2[O:10][C:11]3[C:16]([N:17]=2)=[CH:15][CH:14]=[CH:13][N:12]=3)=[CH:5][CH:4]=1)#[N:2].S(=O)(=O)(O)[OH:19]>>[C:1]([C:3]1[CH:4]=[CH:5][C:6]([C:9]2[O:10][C:11]3[C:16]([N:17]=2)=[CH:15][CH:14]=[CH:13][N:12]=3)=[CH:7][CH:8]=1)(=[O:19])[NH2:2]Komponenten
3
Versuchsvorschrift
A solution of 600 mg. of 2-(4-cyanophenyl)oxazolo[ 5,4-b]pyridine in 8 ml. of concentrated sulfuric acid was allowed to stand at room temperature for 16 hours. The solution was poured onto ice and the white precipitate was collected on a filter to give 2-(4-carbamylphenyl)oxazolo[ 5,4-b]pyridine, m.p. 315° C. (dec.).
Aufarbeitung
- additionThe solution was poured onto ice
- customthe white precipitate was collected on
- filtrationa filter