Acetic Anhydride → 3-Methoxycarbonyl-2-benzylidenepropanoic acid

HRID 2083711Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2083711
[C:1]([CH2:4][C:5](=[CH:9][C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1)[C:6]([OH:8])=[O:7])([OH:3])=[O:2].[C:16](OC(=O)C)(=O)C>>[CH3:16][O:2][C:1]([CH2:4][C:5](=[CH:9][C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1)[C:6]([OH:8])=[O:7])=[O:3]

Komponenten

3

Edukt 2

HCID 7918Acetic AnhydrideHCID 2229982-(Phenylmethylene)butanedioic acid

Produkt 1

HCID 541581613-Methoxycarbonyl-2-benzylidenepropanoic acid

Versuchsvorschrift

2-Carboxymethyl-3-phenylpropenoic acid (4.1 g.) and acetic anhydride (9 ml.) are heated in the steam bath for 70 minutes. The mixture is concentrated to dryness and the residue triturated with ether, yield 3.6 g. This anhydride is dissolved in 7 ml. of methanol and heated in the steam bath for 1 hour.

Aufarbeitung

  1. concentrationThe mixture is concentrated to dryness
  2. customthe residue triturated with ether, yield 3.6 g
  3. dissolutionThis anhydride is dissolved in 7 ml
  4. temperatureof methanol and heated in the steam bath for 1 hour

Quellen und Nachweise

ORD-Eintrag
ord-4f95cac6eeb5427a97011d187ecfc144
Quelldatensatz
uspto-grants-1978_04
Patentnummer
US04086338

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