Hydrazine hydrate (1:1) → HCID 178505886、化合物
反応式
Cl[C:2]1[C:3]([C:17]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][C:20]=2[Cl:25])=O)=[N:4][CH:5]=[C:6]([O:8][C:9]2[CH:14]=[CH:13][C:12]([F:15])=[CH:11][C:10]=2[F:16])[N:7]=1.O.[NH2:27][NH2:28]>C(O)C>[Cl:25][C:20]1[CH:21]=[CH:22][CH:23]=[CH:24][C:19]=1[C:17]1[C:3]2[C:2](=[N:7][C:6]([O:8][C:9]3[CH:14]=[CH:13][C:12]([F:15])=[CH:11][C:10]=3[F:16])=[CH:5][N:4]=2)[NH:28][N:27]=1参加物
4
実験手順
To a solution of [3-chloro-5-(2,4-difluorophenoxyl)pyrazin-2-yl]-(2-chlorophenyl)methanone (0.73 g, 1.9 mmol, 1.0 eq) in ethanol was added hydrazine hydrate (0.19 mL, 3.8 mmol, 2.0 eq). The resulting mixture was refluxed under nitrogen for 0.5 hours. The reaction mixture was cooled and filtered to give 3-(2-chlorophenyl)-6-(2,4-difluorophenoxy)-1H-pyrazolo[3,4-b]pyrazine (0.285 g, 0.8 mmol, 42% yield) as a solid. MP=240.5-241.5° C. Mass spec., M+1=359.