Ammonium Chloride → 2-Fluoro-N1-(2-(1-methyl-1H-imidazol-4-yl)thieno[3,2-b]pyridin-7-yl)benzene-1,4-diamine

HRID 1711105ノート

反応式

HRID 1711105 の反応式
[F:1][C:2]1[CH:7]=[C:6]([N+:8]([O-])=O)[CH:5]=[CH:4][C:3]=1[NH:11][C:12]1[CH:17]=[CH:16][N:15]=[C:14]2[CH:18]=[C:19]([C:21]3[N:22]=[CH:23][N:24]([CH3:26])[CH:25]=3)[S:20][C:13]=12.[NH4+].[Cl-]>CO.O.[Fe]>[F:1][C:2]1[CH:7]=[C:6]([NH2:8])[CH:5]=[CH:4][C:3]=1[NH:11][C:12]1[CH:17]=[CH:16][N:15]=[C:14]2[CH:18]=[C:19]([C:21]3[N:22]=[CH:23][N:24]([CH3:26])[CH:25]=3)[S:20][C:13]=12

参加物

6

反応物 2

HCID 25517Ammonium ChlorideHCID 59457676N-(2-Fluoro-4-nitrophenyl)-2-(1-methyl-1H-imidazol-4-yl)thieno[3,2-b]pyridin-7-amine

生成物 1

HCID 594577422-Fluoro-N1-(2-(1-methyl-1H-imidazol-4-yl)thieno[3,2-b]pyridin-7-yl)benzene-1,4-diamine収率 136.4%

試薬・触媒・溶媒 3

HCID 23925Iron触媒HCID 887Methanol溶媒HCID 962Water溶媒

実験手順

To a stirred suspension of nitro compound 417 (370 mg, 1.00 mmol) in a mixture of MeOH (20 mL) and water (10 mL) were added iron powder (280 mg, 5.01 mmol) and NH4Cl (107 mg, 2.00 mmol). The reaction mixture was heated to reflux for 2 hrs, cooled to room temperature and filtered through celite. The filtrate was concentrated, diluted with minimal amount of methanol and treated with AcOEt/hexanes, to afford title compound 418 (463 mg, quantitative yield, ammonium salt) as a yellow solid. LCMS: 340.0 (M+H)+.

後処理

  1. temperatureThe reaction mixture was heated
  2. temperatureto reflux for 2 hrs
  3. filtrationfiltered through celite
  4. concentrationThe filtrate was concentrated
  5. additiondiluted with minimal amount of methanol
  6. additiontreated with AcOEt/hexanes

出典と根拠

ORDレコード
ord-cd749d74a89e44f49c76f6b91194a9ee
出典データセット
uspto-grants-2010_09
特許番号
US07790729B2

反応ノート

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