Methanol → Methyl 3-(4-methylphenyl)-2-propenoate

HRID 464717

Reaktionsgleichung

Reaktionsgleichung von HRID 464717
[CH3:1][C:2]1[CH:12]=[CH:11][C:5]([CH:6]=[CH:7][C:8]([OH:10])=[O:9])=[CH:4][CH:3]=1.S(=O)(=O)(O)O.[CH3:18]O>>[CH3:18][O:9][C:8](=[O:10])[CH:7]=[CH:6][C:5]1[CH:11]=[CH:12][C:2]([CH3:1])=[CH:3][CH:4]=1

Komponenten

4

Edukt 3

HCID 887MethanolHCID 1118Sulfuric AcidHCID 158353-(p-Tolyl)acrylic acid

Produkt 1

HCID 589472Methyl 3-(4-methylphenyl)-2-propenoate

Versuchsvorschrift

A suspension of 300 g of p-methylcinnamic acid (J. Chem. Soc., Chem. Comm., 471, 1976) and 25 ml of concentrated sulfuric acid in 1.7 liters of methanol is heated to reflux for 24 hours. The solution is concentrated, cooled and filtered to give as a white solid, p-methylcinnamic acid methyl ester, mp 55°-56° C.

Aufarbeitung

  1. temperatureis heated
  2. temperatureto reflux for 24 hours
  3. concentrationThe solution is concentrated
  4. temperaturecooled
  5. filtrationfiltered

Quellen und Nachweise

ORD-Eintrag
ord-f1736f1382ed4ff6ba975d778496976c
Quelldatensatz
uspto-grants-1985_10
Patentnummer
US04548947

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