Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|
| Edukt | Water | HCID 962 | — |
| Edukt | Acetic Anhydride | HCID 7918 | — |
| Edukt | Sodium Acetate | HCID 517045 | — |
| Edukt | 3-Methylsalicylaldehyde | HCID 522777 | — |
| Lösungsmittel | Hexane | HCID 8058 | — |
| Produkt | 8-Methylcoumarin | HCID 15734 | 85% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patentnummer | US08143424B2 |
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| Quelldatensatz | uspto-grants-2012_03 |
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| ORD ID | ord-d2f367b4660d452b9b4537e0f3e82b7a |
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| Quellennotiz | uspto-grants-2012_03 |
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