Potassium Carbonate → Methyl pyrrole-2-carboxylate
Reaktionsgleichung
BrCC1C=C(C=CC=1)C[N:7]1[C:11](I)=[C:10](C=O)[CH:9]=[C:8]1[C:15]([O:17][CH3:18])=[O:16].C([O-])([O-])=O.[K+].[K+]>CO>[NH:7]1[CH:11]=[CH:10][CH:9]=[C:8]1[C:15]([O:17][CH3:18])=[O:16]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
To a stirred solution of 2-(trichloroacetyl)pyrrole (1) (10.00 g, 47.1 mmol) in MeOH (20 mL) was added K2CO3 (8.44 g, 61.2 mmol). The resulting mixture was stirred under reflux for 3 hours, cooled to room temperature and filtered. The filtrate was concentrated in vacuo to give 2 as a dark brown solid (5.50 g, 93%). 1H NMR (400 MHz, CDCl3) δ 9.49 (brs, 1H), 6.92-6.96 (m, 2H), 6.26 (m, 1H), and 3.86 (s, 3H); 13C NMR (100 MHz, CDCl3) δ 162.05, 123.33, 122.79, 115.56, 110.66, and 51.72.
Aufarbeitung
- temperatureunder reflux for 3 hours
- filtrationfiltered
- concentrationThe filtrate was concentrated in vacuo
Quellen und Nachweise
- ORD-Eintrag
- ord-928795c34fb6421ab72f5a86e60ff177
- Quelldatensatz
- uspto-grants-2013_03
- Patentnummer
- US08404728B2
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