Sodium hydride → 1-Bromo-4-methoxy-2-(methoxymethoxy)benzene

HRID 862951노트

반응식

HRID 862951 반응식
[H-].[Na+].[Br:3][C:4]1[CH:9]=[CH:8][C:7]([O:10][CH3:11])=[CH:6][C:5]=1[OH:12].[CH3:13][O:14][CH2:15]Br>CN(C=O)C>[Br:3][C:4]1[CH:9]=[CH:8][C:7]([O:10][CH3:11])=[CH:6][C:5]=1[O:12][CH2:13][O:14][CH3:15]

참가 물질

5

반응물 3

HCID 24758Sodium hydrideHCID 83093Bromomethyl methyl etherHCID 134938392-Bromo-5-methoxyphenol

생성물 1

HCID 148270371-Bromo-4-methoxy-2-(methoxymethoxy)benzene수율 92,410.5%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

To a suspension of NaH (2.5 g, 0.06 mol) in dry DMF (100 mL) at 0° C. was added solution of 1-bromo-2-hydroxy-4-methoxybenzene (10.6 g, 0.05 mol). After stirring at 0° C. for 30 min. bromomethyl methyl ether (7.8 g, 0.06 mmol) were dropwise added. The mixture was warmed to room temperature over 20 min. and then stirred for 2 h, it was then quenched cautiously by the addition of cold dilute HCl and extracted with EtOAc. The EtOAc extract was washed successively with; H2O, 5% aqueous NaHCO3, H2O and finally brine. After drying (MgSO4) filtration and evaporation gave liquid. The product was purified by distillation (85° C., 0.2 mm Hg) to give the title compound as a colorless oil (13.7 g, 97%).

후처리

  1. additionwere dropwise added
  2. customit was then quenched cautiously by the addition of cold dilute HCl
  3. extractionextracted with EtOAc
  4. extractionThe EtOAc extract
  5. washwas washed successively with
  6. customAfter drying
  7. filtration(MgSO4) filtration and evaporation
  8. customgave liquid
  9. distillationThe product was purified by distillation (85° C., 0.2 mm Hg)

출처 및 근거

ORD 기록
ord-ce0eb49b64fc404a9a1521f5832eaf35
출처 데이터셋
uspto-grants-1998_02
특허 번호
US05719182

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