2,4-Difluoroaniline → HCID 178471929、化合物
反応式
[CH3:1][C:2]1[C:19]([F:20])=[C:18]([F:21])[C:17]([F:22])=[C:16]([F:23])[C:3]=1[C:4]([C:6](=[CH:12]OCC)[C:7]([O:9][CH2:10][CH3:11])=[O:8])=[O:5].[F:24][C:25]1[CH:31]=[C:30]([F:32])[CH:29]=[CH:28][C:26]=1[NH2:27]>>[CH3:1][C:2]1[C:19]([F:20])=[C:18]([F:21])[C:17]([F:22])=[C:16]([F:23])[C:3]=1[C:4]([C:6](=[CH:12][NH:27][C:26]1[CH:28]=[CH:29][C:30]([F:32])=[CH:31][C:25]=1[F:24])[C:7]([O:9][CH2:10][CH3:11])=[O:8])=[O:5]参加物
3
実験手順
Employing ethyl 2-(2-methyl-3,4,5,6-tetrafluorobenzoyl)-3-ethoxyacrylate (5.0 g) and 2,4-difluoroaniline (2.02 g), the procedure of Reference Example 21 is repeated to give ethyl 2-(2-methyl-3,4,5,6-tetrafluorobenzoyl)-3-(2,4-difluorophenyl)aminoacrylate, which is then treated with 60% sodium hydride as in Reference Example 22 to give ethyl 1-(2,4-difluorophenyl)-5-methyl-6,7,8-trifluoro-1,4-dihydro-4-oxoquinoline-3-carboxylate (4.6 g), as pale yellow prisms (recrystallized from dichloromethane--n-hexane), m.p. 156°-157.5° C.
出典と根拠
- ORDレコード
- ord-6ae7f6a569a44833a50cab8b5c8afdd4
- 出典データセット
- uspto-grants-1996_02