Cyclopropanecarbonyl chloride → 6-Bromo-3-cyclopropyl[1,2,4]triazolo[4,3-a]pyridine

HRID 1743989ノート

反応式

HRID 1743989 の反応式
[Br:1][C:2]1[CH:3]=[CH:4][C:5]([NH:8][NH2:9])=[N:6][CH:7]=1.[CH:10]1([C:13](Cl)=O)[CH2:12][CH2:11]1>C(Cl)(Cl)Cl>[Br:1][C:2]1[CH:3]=[CH:4][C:5]2[N:6]([C:13]([CH:10]3[CH2:12][CH2:11]3)=[N:9][N:8]=2)[CH:7]=1

参加物

4

反応物 2

HCID 77637Cyclopropanecarbonyl chlorideHCID 115356995-Bromo-2-hydrazinopyridine

生成物 1

HCID 222368766-Bromo-3-cyclopropyl[1,2,4]triazolo[4,3-a]pyridine収率 106.5%

試薬・触媒・溶媒 1

HCID 6212Chloroform溶媒

反応条件

温度
90 °C

実験手順

A mixture of 5-bromo-pyridin-2-yl-hydrazine (15.0 g, 79.8 mmol) and cyclopropane carbonyl chloride (65.0 mL, 71.8 mmol) is heated at 90° C. for 18 hours. The brown mixture is allowed to cool to room temperature, filtered, and washed with toluene to afford a light brown solid. This solid is taken up in chloroform (CHCl3), and washed with saturated NaHCO3. The organic layer is isolated, and the aqueous layer extracted twice with chloroform (CHCl3). The combined organics are washed with brine, dried over magnesium sulfate, and concentrated in vacuo to give the title compound as a tan solid (18.2 g, 96%).

後処理

  1. temperatureto cool to room temperature
  2. filtrationfiltered
  3. washwashed with toluene
  4. customto afford a light brown solid
  5. washwashed with saturated NaHCO3
  6. customThe organic layer is isolated
  7. extractionthe aqueous layer extracted twice with chloroform (CHCl3)
  8. washThe combined organics are washed with brine
  9. dry with materialdried over magnesium sulfate
  10. concentrationconcentrated in vacuo

出典と根拠

ORDレコード
ord-cf35e6820a8b4cf385666f4ade8cc9d0
出典データセット
uspto-grants-2006_03
特許番号
US07012143B2

反応ノート

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