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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 389310Erstellt: 26. Oktober 2026

Water → 8-Methylcoumarin

https://huagongshe.com/reaction/389310

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
PatentnummerUS08378118B2
Quelldatensatzuspto-grants-2013_02
ORD IDord-58d0d4d5d47848f591413a9b1a765b8b
Quellennotizuspto-grants-2013_02