Propionic Acid → 2-ethyl-7-methyl-3H-Imidazo[4,5-b]pyridine

HRID 466691

Reaktionsgleichung

Reaktionsgleichung von HRID 466691
[C:1](O)(=O)[CH2:2][CH3:3].[NH2:6][C:7]1[C:12]([NH2:13])=[C:11]([CH3:14])[CH:10]=[CH:9][N:8]=1>>[CH2:2]([C:1]1[NH:13][C:12]2[C:7]([N:6]=1)=[N:8][CH:9]=[CH:10][C:11]=2[CH3:14])[CH3:3]

Komponenten

3

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

A mixture of propionic acid (0.89 ml, 12 mmols), 2,3-diamino-4-picoline (1.23 g, 10 mmol) and polyphosphoric acid (40 g) was heated to 100° C. for 6 hours. Work-up of the reaction and purification of the crude product according to the procedure described in Step 1 of Example 9 gave the desired compound (1.46 g, 90%) as a tan colored solid.

Quellen und Nachweise

ORD-Eintrag
ord-36c648157a574f4e940fc5cd20b849e4
Quelldatensatz
uspto-grants-1992_10
Patentnummer
US05157026

Verknüpfte Notizen

Wird geladen…