3-Nitroaniline → 7-Amino-4-(3-nitroanilino)pyrido[4,3-d]pyrimidine

HRID 50791

反応式

HRID 50791 の反応式
[NH2:1][C:2]1[N:11]=[CH:10][C:9]2[C:8](SC)=[N:7][CH:6]=[N:5][C:4]=2[CH:3]=1.[N+:14]([C:17]1[CH:18]=[C:19]([CH:21]=[CH:22][CH:23]=1)[NH2:20])([O-:16])=[O:15]>>[NH2:1][C:2]1[N:11]=[CH:10][C:9]2[C:8]([NH:20][C:19]3[CH:21]=[CH:22][CH:23]=[C:17]([N+:14]([O-:16])=[O:15])[CH:18]=3)=[N:7][CH:6]=[N:5][C:4]=2[CH:3]=1

参加物

3

反応物 2

HCID 74233-NitroanilineHCID 104425627-Amino-4-methylthiopyrido[4,3-d]pyrimidine

生成物 1

HCID 53280537-Amino-4-(3-nitroanilino)pyrido[4,3-d]pyrimidine収率 43.5%

反応条件

温度
200 °C

実験手順

A mixture of 7-amino-4-methylthiopyrido[4,3-d]pyrimidine (127 mg, 0.66 mmol) (described in a previous experimental) and 3-nitroaniline (1.70 g, 12.3 mmol) is stirred under N2 at 200° C. for 1.5 h. The resulting product is chromatographed over alumina (5-20% EtOH/CHCl3) to give 7-amino-4-(3-nitroanilino)pyrido[4,3-d]pyrimidine (81 mg, 39%) as a brown solid. 1H NMR (DMSO) δ 10.17 (1H, brs), 9.37 (1H, s), 8.87 (1H, brs), 8.48 (1H, s), 8.33 (1H, brd, J=7.5 Hz), 7.95 (1H, ddd, J=8.2, 2.1, 1.0 Hz), 7.67 (1H, t, J=8.2 Hz), 6.70 (2H, brs), 6.47 (1H, s).

後処理

  1. customThe resulting product is chromatographed over alumina (5-20% EtOH/CHCl3)

出典と根拠

ORDレコード
ord-6d8995cef9014cd6a0a227333f1abc1e
出典データセット
uspto-grants-2004_03
特許番号
US06713484B2

関連ノート

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