Ammonium Chloride → 4-methyl-5-((2-(1-methyl-1H-pyrazol-4-yl)pyridin-4-yl)oxy)pyridin-2-amine

HRID 718140ノート

反応式

HRID 718140 の反応式
[CH3:1][C:2]1[C:7]([O:8][C:9]2[CH:14]=[CH:13][N:12]=[C:11]([C:15]3[CH:16]=[N:17][N:18]([CH3:20])[CH:19]=3)[CH:10]=2)=[CH:6][N:5]=[C:4]([N+:21]([O-])=O)[CH:3]=1.[NH4+].[Cl-]>CO.C1COCC1.CCOC(C)=O.[Zn]>[CH3:1][C:2]1[C:7]([O:8][C:9]2[CH:14]=[CH:13][N:12]=[C:11]([C:15]3[CH:16]=[N:17][N:18]([CH3:20])[CH:19]=3)[CH:10]=2)=[CH:6][N:5]=[C:4]([NH2:21])[CH:3]=1

参加物

7

反応物 2

HCID 25517Ammonium ChlorideHCID 904033434-Methyl-5-[[2-(1-methyl-1h-pyrazol-4-yl)-4-pyridinyl]oxy]-2-nitropyridine

生成物 1

HCID 686640964-methyl-5-((2-(1-methyl-1H-pyrazol-4-yl)pyridin-4-yl)oxy)pyridin-2-amine収率 67.3%

試薬・触媒・溶媒 4

HCID 23994Zinc触媒HCID 887Methanol溶媒HCID 8028Tetrahydrofuran溶媒HCID 8857Ethyl Acetate溶媒

実験手順

A solution of 4-methyl-5-((2-(1-methyl-1H-pyrazol-4-yl)pyridin-4-yl)oxy)-2-nitropyridine (2.3 g, 7.39 mmol) in MeOH (37 mL) and THF (37 mL) was treated with NH4Cl (11.86 g, 222 mmol) followed by the portion-wise addition of zinc dust (4.83 g, 73.9 mmol) and the mixture stirred at RT overnight. The mixture was diluted with EtOAc, the solids removed via filtration through diatomaceous earth and the filtrate concentrated to dryness and purified via silica gel chromatography (MeOH/DCM) to afford 4-methyl-5-((2-(1-methyl-1H-pyrazol-4-yl)pyridin-4-yl)oxy)pyridin-2-amine (1.4 g, 67%). MS (ESI) m/z: 282.1 (M+H+).

後処理

  1. customthe solids removed via filtration through diatomaceous earth
  2. concentrationthe filtrate concentrated to dryness
  3. custompurified via silica gel chromatography (MeOH/DCM)

出典と根拠

ORDレコード
ord-a49315b075d24064aa09b1187c40b803
出典データセット
uspto-grants-2015_11
特許番号
US09193719B2

反応ノート

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