海萝胶 → 阿魏酸甲酯

HRID 53833

反应方程式

HRID 53833 反应方程式
[C:1]([OH:14])(=[O:13])/[CH:2]=[CH:3]/[C:4]1[CH:12]=[CH:11][C:9]([OH:10])=[C:6]([O:7][CH3:8])[CH:5]=1.[CH3:15]O.Cl>CCCCCC.C(OCC)(=O)C>[C:1]([O:14][CH3:15])(=[O:13])/[CH:2]=[CH:3]/[C:4]1[CH:12]=[CH:11][C:9]([OH:10])=[C:6]([O:7][CH3:8])[CH:5]=1

参与物

5

反应物 3

HCID 313海萝胶HCID 887(5BETA,17BETA)-17-羟基-17-(甲基-D3)-2'H-雄甾-2-烯并[3,2-C]吡唑-5'(1'H)-酮HCID 445858阿魏酸

产物 1

HCID 5357283阿魏酸甲酯

试剂、催化剂与溶剂 1

HCID 21226206Ethyl acetate hexane溶剂

实验过程

Ferulic acid (4.85 g) and then methyl alcohol (50 ml) containing hydrogen chloride (4%) were placed in an egg-plant type flask (200 ml), and heated under reflux for 1 hour. The disappearance of the starting material was confirmed by thin layer chromatography (TLC: n-hexane/ethyl acetate=2/1), then the solvent was evaporated under reduced pressure by a rotary evaporator. Benzene was added to the residue, and then, the solvent was again evaporated by a rotary evaporator to obtain the crude product. The resulting crude product was separated and purified by silica gel column chromatography (diameter=5.5×7.0 cm; 60 g; n-hexane/ethyl acetate=2/1) to obtain the above-identified compound. The product was crystallized from n-hexane to obtain a white crystal (5.09 g; 97.9%).

后处理

  1. customwere placed in an egg-plant type flask
  2. temperature(200 ml), and heated
  3. temperatureunder reflux for 1 hour
  4. customthe solvent was evaporated under reduced pressure by a rotary evaporator
  5. additionBenzene was added to the residue
  6. customthe solvent was again evaporated by a rotary evaporator

来源与证据

ORD记录
ord-95b45af7e71e4a62a248194e8feab55d
来源数据集
uspto-grants-1997_04
专利号
US05621009

关联笔记

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