Sodium Carbonate → 3-Hydroxy-2-(3-furyl)pyridine

HRID 63378

反応式

HRID 63378 の反応式
Br[C:2]1[C:7]([OH:8])=[CH:6][CH:5]=[CH:4][N:3]=1.[O:9]1[CH:13]=[CH:12][C:11](B(O)O)=[CH:10]1.C(=O)([O-])[O-].[Na+].[Na+]>C(COC)OC.O>[O:9]1[CH:13]=[CH:12][C:11]([C:2]2[C:7]([OH:8])=[CH:6][CH:5]=[CH:4][N:3]=2)=[CH:10]1

参加物

5

反応物 3

HCID 10340Sodium CarbonateHCID 230702-Bromo-3-pyridinolHCID 2734358Furan-3-boronic acid

生成物 1

HCID 831299213-Hydroxy-2-(3-furyl)pyridine収率 27%

試薬・触媒・溶媒 1

HCID 18180031Water 1,2-dimethoxyethane溶媒

反応条件

温度
120 °C

実験手順

2-Bromopyridin-3-ol (200 mg, 1.15 mmol), 3-furan boronic acid (574 mg, 1.38 mmol), sodium carbonate (365 mg, 12.8 mmol) and Pd2(dppf)2Cl2 (187 mg, 0.23 mmol) were dissolved in dimethoxyethane/water 2 mL/1 mL, followed by stirring in microwave at 120° C. for 20 minutes. After the completion of the reaction, the reaction mixture was filtered using Celite. The filtrate was added with water, and extracted with ethyl acetate. The obtained organic layer was dried over magnesium sulfate, and purified by column chromatography (ethyl acetate:hexane=1:3) to obtain 2-(furan-3-yl)pyridin-3-ol (50 mg, 27%).

後処理

  1. customAfter the completion of the reaction
  2. filtrationthe reaction mixture was filtered
  3. additionThe filtrate was added with water
  4. extractionextracted with ethyl acetate
  5. dry with materialThe obtained organic layer was dried over magnesium sulfate
  6. custompurified by column chromatography (ethyl acetate:hexane=1:3)

出典と根拠

ORDレコード
ord-753d541b0a1a4293a8ab763930e70e3e
出典データセット
uspto-grants-2016_09
特許番号
US09447083B2

関連ノート

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