Water → 2,4-Dimethyl-6-(4-pyridinyl)phenol

HRID 63376

반응식

HRID 63376 반응식
Br[C:2]1[CH:7]=[C:6]([CH3:8])[CH:5]=[C:4]([CH3:9])[C:3]=1[OH:10].[N:11]1[CH:16]=[CH:15][C:14](B(O)O)=[CH:13][CH:12]=1.C(=O)([O-])[O-].[Na+].[Na+].O>C(COC)OC.O.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[CH3:9][C:4]1[CH:5]=[C:6]([CH3:8])[CH:7]=[C:2]([C:14]2[CH:15]=[CH:16][N:11]=[CH:12][CH:13]=2)[C:3]=1[OH:10]

참가 물질

7

반응물 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 2999762-Bromo-4,6-dimethylphenolHCID 2734379(Pyridin-4-yl)boronic acid

생성물 1

HCID 1364905592,4-Dimethyl-6-(4-pyridinyl)phenol수율 30.1%

시약·촉매·용매 2

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)촉매HCID 18180031Water 1,2-dimethoxyethane용매

실험 절차

2-Bromo-4,6-dimethylphenol (0.5 g, 2.5 mmol) was dissolved in dimethoxyethane/water (2:1). Pyridin-4-ylboronic acid (0.32 g, 2.5 mmol) and Pd(dppf)Cl2 (0.10 g, 0.13 mmol), sodium carbonate (1 g, 13 mmol) were added thereto, followed by stirring for 1 hour under reflux. After the completion of the reaction, the reaction mixture was added with water, and extracted with ethyl acetate. The obtained organic layer was dried over magnesium sulfate, concentrated under reduced pressure, and purified by column chromatography to obtain 2,4-dimethyl-6-(pyridin-4-yl)phenol (0.15 g, 30%).

후처리

  1. temperatureunder reflux
  2. customAfter the completion of the reaction
  3. extractionextracted with ethyl acetate
  4. dry with materialThe obtained organic layer was dried over magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. custompurified by column chromatography

출처 및 근거

ORD 기록
ord-64de13d8a55b40b4a50f41a2d31d6cb7
출처 데이터셋
uspto-grants-2016_09
특허 번호
US09447083B2

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