Ethanol → Ethyl 3-(5-methoxynaphthalen-2-yl)prop-2-enoate

HRID 1288210Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1288210
[CH3:1][O:2][C:3]1[CH:12]=[CH:11][CH:10]=[C:9]2[C:4]=1[CH:5]=[CH:6][C:7]([CH:13]=[CH:14][C:15]([OH:17])=[O:16])=[CH:8]2.S(=O)(=O)(O)O.[CH2:23](O)[CH3:24]>C(Cl)(Cl)Cl>[CH3:1][O:2][C:3]1[CH:12]=[CH:11][CH:10]=[C:9]2[C:4]=1[CH:5]=[CH:6][C:7]([CH:13]=[CH:14][C:15]([O:17][CH2:23][CH3:24])=[O:16])=[CH:8]2

Komponenten

5

Edukt 3

HCID 702EthanolHCID 1118Sulfuric AcidHCID 544606323-(5-Methoxynaphthalen-2-yl)prop-2-enoic acid

Produkt 1

HCID 53889879Ethyl 3-(5-methoxynaphthalen-2-yl)prop-2-enoate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6212ChloroformLösungsmittel

Versuchsvorschrift

β-(5-methoxynaphth-2-yl)propenoic acid (0.075 moles) is allowed to reflux with 8-10 pieces of Orierite in absolute ethanol (20 ml) containing concentrated sulfuric acid (5 ml) for 21 hours. The cooled reaction mixture is diluted with chloroform and filtered hot. The filtrate is washed 3 times with water, once with 10% sodium bicarbonate and twice more with water. After drying over sodium sulfate, the solvent is removed to give ethyl β-(5-methoxynaphth-2-yl)propenoate.

Aufarbeitung

  1. customThe cooled reaction mixture
  2. filtrationfiltered hot
  3. washThe filtrate is washed 3 times with water
  4. dry with materialAfter drying over sodium sulfate
  5. customthe solvent is removed

Quellen und Nachweise

ORD-Eintrag
ord-8496e4432d85419ca57085f72da427d3
Quelldatensatz
uspto-grants-1976_10
Patentnummer
US03987116

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