Preparation of 5‐Aryl‐3‐Oxo‐δ‐Lactones by the Potassium Carbonate–Promoted Condensation of Aromatic Aldehydes and Ethyl Acetoacetate in Ethanol
Autor: | Carl Stanley, Jessica Gereg, Mical Amanuel, Brad Andersh |
---|---|
Rok vydání: | 2008 |
Předmět: | |
Zdroj: | Synthetic Communications. 38:482-488 |
ISSN: | 1532-2432 0039-7911 |
DOI: | 10.1080/00397910701796493 |
Popis: | 5‐Aryl‐3‐oxo‐δ‐lactones (6‐aryl‐dihydro‐2H‐pyran‐2,4(3H)‐diones) were prepared by the potassium carbonate–promoted condensation of aromatic aldehydes and ethyl acetoacetate in absolute ethanol. Benzaldehyde and substituted benzaldehydes bearing an alkoxy group (2 or 3 position), a chlorine atom (2, 3, or 4 position), a nitro group (3 or 4 position), a cyano group (4 position), or an acetyl group (4 position) react in high yields under these conditions. |
Databáze: | OpenAIRE |
Externí odkaz: | |
Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |