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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 1099362Erstellt: 25. Oktober 2026

Water → 8-Methylcoumarin

https://huagongshe.com/reaction/1099362

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktWaterHCID 962—
EduktAcetic AnhydrideHCID 7918—
EduktSodium AcetateHCID 517045—
Edukt3-MethylsalicylaldehydeHCID 522777—
LösungsmittelHexaneHCID 8058—
Produkt8-MethylcoumarinHCID 1573485%

Reaktionsbedingungen

Temperatur177.5 °C

Reaktionsschritte

The suspension of 2-Hydroxy-3-methyl benzaldehyde (30 gm, 0.220 mole) and anhydrous Sodium acetate (45 gm, 0.55 mole) in Acetic anhydride (45 gm, 0.44 mole) was heated at 175-180° C. for 6 hours. The reaction mixture was cooled; water (150 ml) and Hexane (60 ml) were added. It was stirred for an hour and filtered. The obtained solid was stirred with Diethyl ether (30 ml). Finally the suspension was filtered and dried to give 19 gm desired product.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS08143424B2
Quelldatensatzuspto-grants-2012_03
ORD IDord-d2f367b4660d452b9b4537e0f3e82b7a
Quellennotizuspto-grants-2012_03