Acetic acid 10-acetoxymethyl-anthracen-9-ylmethyl ester → Methyl 4-formamidopyridine-2-carboxylate
Reaktionsgleichung
C[C:2](OCC1C2C(=CC=CC=2)C(COC(C)=O)=C2C=1C=CC=C2)=[O:3].[NH2:25][C:26]1[CH:31]=[CH:30][N:29]=[C:28]([C:32]([O:34][CH3:35])=[O:33])[CH:27]=1>C(O)=O>[CH:2]([NH:25][C:26]1[CH:31]=[CH:30][N:29]=[C:28]([C:32]([O:34][CH3:35])=[O:33])[CH:27]=1)=[O:3]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 50 °C
Versuchsvorschrift
A mixture of formic acid (20 g.) and acetic anhyride (41.3 g.) was stirred for 30 minutes at 50° C. and thereto was added methyl 4-amino-2-pyridinecarboxylate (11 g.) at ambient temperature, and then the mixture was stirred for 2 hours at 70°-75° C. After the removal of the solvent from the reaction mixture, the residue was recrystallized from ethanol (160 ml.) to give a pale yellow powder of methyl 4-formamido-2-pyridinecarboxylate (8.3 g.), mp. 185° to 186.5° C.
Aufarbeitung
- stirringthe mixture was stirred for 2 hours at 70°-75° C
- customAfter the removal of the solvent from the reaction mixture
- customthe residue was recrystallized from ethanol (160 ml.)
Quellen und Nachweise
- ORD-Eintrag
- ord-e39ad9ddaed94db6971f3645b54970b4
- Quelldatensatz
- uspto-grants-1986_06
- Patentnummer
- US04596869
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