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Benzyl Bromide → (4-(Benzyloxy)-2-methylphenyl)methanol

HRID 1946386
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HRID 1946386 반응식
[OH:1][CH2:2][C:3]1[CH:8]=[CH:7][C:6]([OH:9])=[CH:5][C:4]=1[CH3:10].[OH-].[Na+].[CH2:13](Br)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1>C(O)C.ClCCl>[CH3:10][C:4]1[CH:5]=[C:6]([O:9][CH2:13][C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[CH:7]=[CH:8][C:3]=1[CH2:2][OH:1]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 3

HCID 7498Benzyl BromideHCID 14798Sodium HydroxideHCID 180080544-(Hydroxymethyl)-3-methylphenol

생성물 1

HCID 23077848(4-(Benzyloxy)-2-methylphenyl)methanol수율 36.8%

시약·촉매·용매 2

HCID 702Ethanol용매HCID 6344Dichloromethane용매

실험 절차

To a solution of 4-(hydroxymethyl)-3-methylphenol (4.25 g, 30.8 mmol) in ethanol (90 ml) was added 2M aqueous sodium hydroxide (17 ml, 34 mmol) and then benzyl bromide (3.65 ml, 30.8 mmol, Aldrich). The pale yellow mixture was stirred at ambient temperature under nitrogen overnight. The solvent was removed in vacuo to leave an aqueous suspension. The residue was partitioned between dichloromethane (100 ml) and water (100 ml). The phases were separated and the aqueous phase extracted with dichloromethane (50 ml). The combined organic extracts were dried (MgSO4), filtered and the solvent removed in vacuo to leave an orange oil. The residue was loaded in dichloromethane and purified on silica (100 g×3) using 0-100% ethyl acetate-cyclohexane. The appropriate fractions were combined and the solvent evaporated in vacuo to give {2-methyl-4-[(phenylmethyl)oxy]phenyl}methanol (2.59 g).

후처리

  1. customThe solvent was removed in vacuo
  2. customto leave an aqueous suspension
  3. customThe residue was partitioned between dichloromethane (100 ml) and water (100 ml)
  4. customThe phases were separated
  5. extractionthe aqueous phase extracted with dichloromethane (50 ml)
  6. dry with materialThe combined organic extracts were dried (MgSO4)
  7. filtrationfiltered
  8. customthe solvent removed in vacuo
  9. customto leave an orange oil
  10. custompurified on silica (100 g×3)
  11. customthe solvent evaporated in vacuo

출처 및 근거

ORD 기록
ord-cac267eb1b8d40c7950fa82cc5031c4e
출처 데이터셋
uspto-grants-2013_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08399436B2

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