Ethyl 6-hydroxy-4-methylhexa-2,4-dienoate → HCID 54046952, Verbindung

HRID 1719108Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1719108
[OH:1][CH2:2][CH:3]=[C:4]([CH3:12])[CH:5]=[CH:6][C:7]([O:9][CH2:10][CH3:11])=[O:8]>ClCCl.[O-2].[Mn+4].[O-2]>[CH:2]([CH:3]=[C:4]([CH3:12])[CH:5]=[CH:6][C:7]([O:9][CH2:10][CH3:11])=[O:8])=[O:1]

Komponenten

4

Edukt 1

HCID 54238884Ethyl 6-hydroxy-4-methylhexa-2,4-dienoate

Produkt 1

HCID 54046952HCID 54046952, VerbindungAusbeute 78,7 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418406HCID 178418406, VerbindungKatalysatorHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

11.7 g of ethyl 6-hydroxy-4-methyl-2,4-hexadienoate in 200 ml of dichloromethane were stirred at room temperature for 4 hours with 30 g of manganese (IV) oxide. The solution was filtered and concentrated and the residue was then recrystallized from hexane/cyclohexane. There were obtained 9.1 g (78%) of ethyl 5-formyl-4-methyl-2,4-pentadienoate of melting point 48°-49° C.

Aufarbeitung

  1. filtrationThe solution was filtered
  2. concentrationconcentrated
  3. customthe residue was then recrystallized from hexane/cyclohexane

Quellen und Nachweise

ORD-Eintrag
ord-14ed18fc516641fbbdd144af3f056f0f
Quelldatensatz
uspto-grants-1985_09
Patentnummer
US04539154

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