反応式
[NH:1]1[C:8](=[O:9])[CH2:7][C:5](=[O:6])[NH:4][C:2]1=[S:3].[F:10][C:11]1[CH:16]=[CH:15][C:14]([N:17]=[C:18]=[O:19])=[CH:13][CH:12]=1>N1C=CC=CC=1>[F:10][C:11]1[CH:16]=[CH:15][C:14]([NH:17][C:18]([C:7]2[C:8](=[O:9])[NH:1][C:2](=[S:3])[NH:4][C:5]=2[OH:6])=[O:19])=[CH:13][CH:12]=1参加物
4
反応条件
- 温度
- 90 °C
実験手順
2-thiobarbituric acid (14.4 g) was suspended in pyridine and 4-fluorophenyl isocyanate (13.7 g) was added thereto. The reaction mixture was maintained at 90° C. for one hour, and thereafter left overnight at room temperature. The solids formed were collected, washed with pyridine, re-suspended in ethanol, and again collected and dried. A pale pink powder product was thereby obtained, mp >250° C. (dec.), NMR (DMSO) 7.0-7.7δ (multiplet, integral 4); 10.7-11.4δ (overlapping broad singlets, combined integral 4). MS, M/e 281 (Calc., 281).
後処理
- customThe solids formed
- customwere collected
- washwashed with pyridine
- customagain collected
- customdried
- customA pale pink powder product was thereby obtained
出典と根拠
- ORDレコード
- ord-8411a693a2244562bb1b98915c09dac2
- 出典データセット
- uspto-grants-1987_01
- 特許番号
- US04634707
関連ノート
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