Water → 4-Hydroxy-5-methyl-2,3-dihydro-1H-inden-1-one

HRID 389312Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 389312
[CH3:1][C:2]1[CH:3]=[CH:4][CH:5]=[C:6]2[C:11]=1[O:10][C:9](=[O:12])[CH2:8][CH2:7]2.[Cl-].[Cl-].[Cl-].[Al+3].O>CO>[OH:10][C:11]1[C:2]([CH3:1])=[CH:3][CH:4]=[C:5]2[C:6]=1[CH2:7][CH2:8][C:9]2=[O:12]

Komponenten

5

Edukt 3

HCID 962WaterHCID 6451240Aluminum(III) ChlorideHCID 235130958-Methyl-3,4-dihydrocoumarin

Produkt 1

HCID 668122914-Hydroxy-5-methyl-2,3-dihydro-1H-inden-1-oneAusbeute 67,7 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Reaktionsbedingungen

Temperatur
177.5 °C

Versuchsvorschrift

The mixture of 8-Methyl dihydrocoumarin (20 gm, 0.123 mole) and Aluminum trichloride (49.3 gm, 0.370 mole) was stirred for 2 hours at 175-180° C. To the reaction mixture, water (250 ml) was added slowly and stirred for an hour. Further it was filtered and obtained solid was stirred in Methanol (60 ml). Finally the suspension was filtered and obtained solid was dried under vacuum to give 13.5 gm of desired product as a solid.

Aufarbeitung

  1. stirringstirred for an hour
  2. filtrationFurther it was filtered
  3. customobtained solid
  4. filtrationFinally the suspension was filtered
  5. customobtained solid
  6. customwas dried under vacuum

Quellen und Nachweise

ORD-Eintrag
ord-315445d0dd5c4e439bf36c7c5047aa8d
Quelldatensatz
uspto-grants-2013_02
Patentnummer
US08378118B2

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