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1,2-Dimethoxyethane → 2-Chloro-4-(4-methylphenyl)pyridine

HRID 1844937
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HRID 1844937 반응식
[Cl:1][C:2]1[CH:7]=[C:6](I)[CH:5]=[CH:4][N:3]=1.[C:9]1([CH3:24])[CH:14]=[CH:13][CH:12]=[CH:11][C:10]=1C1C=CC(B(O)O)=CC=1.C(=O)([O-])[O-].[Na+].[Na+].COCCOC>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.O>[Cl:1][C:2]1[CH:7]=[C:6]([C:12]2[CH:13]=[CH:14][C:9]([CH3:24])=[CH:10][CH:11]=2)[CH:5]=[CH:4][N:3]=1
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참가 물질

7

반응물 4

HCID 80711,2-DimethoxyethaneHCID 10340Sodium CarbonateHCID 15165112-Chloro-4-iodopyridineHCID 23005382(2'-Methyl-[1,1'-biphenyl]-4-yl)boronic acid

생성물 1

HCID 446052162-Chloro-4-(4-methylphenyl)pyridine수율 44%

시약·촉매·용매 2

HCID 178418397
HCID 178418397, 화합물
촉매
HCID 962Water용매

실험 절차

A mixture of 2-chloro-4-iodopyridine (10.0 g, 41.8 mmol), p-tolylphenylboronic acid (5.68 g, 41.8 mmol), Pd(Ph3P)4 (1.45 g 1.25 mmol), sodium carbonate (13.3 g, 125 mmol), DME (300 mL) and water (75 mL) was degassed with nitrogen and then refluxed overnight. The reaction mixture was concentrated and extracted with ethyl acetate. The ethyl acetate layer was dried on Na2SO4 and vacuum distilled and recrystallized to give 2-chloro-4-(p-tolyl)pyridine (3.75 g, 18.4 mmol, 44% yield).

후처리

  1. customwas degassed with nitrogen
  2. temperaturerefluxed overnight
  3. concentrationThe reaction mixture was concentrated
  4. extractionextracted with ethyl acetate
  5. dry with materialThe ethyl acetate layer was dried on Na2SO4 and vacuum
  6. distillationdistilled
  7. customrecrystallized

출처 및 근거

ORD 기록
ord-58f2a078846c46cdb49b5a6dc4f3072b
출처 데이터셋
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08946697B1

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