Stannous chloride dihydrate → HCID 18516946、化合物
反応式
[C:1]([C:3]1[C:4]([C:19]2[S:20][CH:21]=[CH:22][CH:23]=2)=[N:5][C:6]([NH:9][C:10]2[CH:15]=[CH:14][CH:13]=[C:12]([N+:16]([O-])=O)[CH:11]=2)=[N:7][CH:8]=1)#[N:2].O.O.[Sn](Cl)Cl>C(O)C>[NH2:16][C:12]1[CH:11]=[C:10]([NH:9][C:6]2[N:5]=[C:4]([C:19]3[S:20][CH:21]=[CH:22][CH:23]=3)[C:3]([C:1]#[N:2])=[CH:8][N:7]=2)[CH:15]=[CH:14][CH:13]=1参加物
4
実験手順
N-3-Aminophenyl-5-cyano-4-thien-2-ylpyrimidine-2-amine was prepared by heating a solution of 5-cyano-N-3-nitrophenyl-4-thien-2-ylpyrimidine-2-amine (2.77 g, 8.57 mmol) and tin(II)chloride dihydrate (7.73 g, 34.05 mmol) in ethanol (160 mL) at reflux for 18 h. On cooling the reaction was concentrated under reduced pressure and partitioned between CH2Cl2 and 2M NaOH. The organic phase was dried (MgSO4) and evaporated to give the desired material (320 mg) as a yellow solid, m.p. 221-222°. δH (d6 DMSO) 10.16 (1H, s), 8.83 (1H, s), 8.24 (1H, d, J 3.9 Hz), 7.97 (1H, d, J 5.1 Hz), 7.32 (1H, dd, J 5.0, 4.0 Hz), 6.97 (3H, bm), 6.31 (1H, m) and 5.04 (2H, bs).
後処理
- temperatureat reflux for 18 h
- temperatureOn cooling the reaction
- concentrationwas concentrated under reduced pressure
- custompartitioned between CH2Cl2 and 2M NaOH
- dry with materialThe organic phase was dried (MgSO4)
- customevaporated
出典と根拠
- ORDレコード
- ord-f4a2f86685fa459a8ba83ed881e0b6f1
- 出典データセット
- uspto-grants-2003_06
- 特許番号
- US06579983B1
反応ノート
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