对苯二酚 → 4-丙烯氧基苯酚

HRID 613405

反应方程式

HRID 613405 反应方程式
[C:1]1([CH:8]=[CH:7][C:5]([OH:6])=[CH:4][CH:3]=1)[OH:2].C(=O)([O-])[O-].[K+].[K+].[CH2:15](Br)[CH:16]=[CH2:17]>CN(C=O)C>[CH2:17]([O:2][C:1]1[CH:8]=[CH:7][C:5]([OH:6])=[CH:4][CH:3]=1)[CH:16]=[CH2:15]

参与物

5

反应物 3

HCID 785对苯二酚HCID 78413-溴丙烯HCID 11430碳酸钾

产物 1

HCID 17138834-丙烯氧基苯酚

试剂、催化剂与溶剂 1

HCID 6228N,N-二甲基甲酰胺溶剂

实验过程

A solution of hydroquinone (33.00 g, 0.30 mol) and potassium carbonate (45.6 g, 0.33 mol) in dry DMF (250 mL) was stirred at 40° C. for minutes. Allyl bromide (5.20 mL, 0.06 mol) was added and the reaction was stirred overnight. The reaction mixture was partitioned between ethyl acetate and 0.2N HCl. The organic layer was washed twice with water, then dried over sodium sulfate. The organic layer was filtered and evaporated to an oil which was chromatographed over silica gel with hexane/ethyl acetate (4:1) to afford 4-allyloxyphenol.

后处理

  1. customThe reaction mixture was partitioned between ethyl acetate and 0.2N HCl
  2. washThe organic layer was washed twice with water
  3. dry with materialdried over sodium sulfate
  4. filtrationThe organic layer was filtered
  5. customevaporated to an oil which
  6. customwas chromatographed over silica gel with hexane/ethyl acetate (4:1)

来源与证据

ORD记录
ord-8bf6c6150ef04d398fbae183c9b71ec1
来源数据集
uspto-grants-1999_12
专利号
US06008237

关联笔记

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