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HRID 2402184Erstellt: 26. Oktober 2026

3,4-Diethoxybenzamide → 2-(3,4-Diethoxyphenyl)-4-(pyridin-4-yl)oxazole

https://huagongshe.com/reaction/2402184

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
Edukt3,4-DiethoxybenzamideHCID 340342—
EduktSodium BicarbonateHCID 516892—
Edukt4-(Bromoacetyl)pyridine hydrobromideHCID 2776239—
LösungsmittelDimethylformamideHCID 6228—
Produkt2-(3,4-Diethoxyphenyl)-4-(pyridin-4-yl)oxazoleHCID 591454902,7%

Reaktionsbedingungen

Temperatur170 °C

Reaktionsschritte

In a microwave vial were dissolved 2-bromo-1-(pyridin-4-yl)ethanone hydrobromide (134 mg, 0.478 mmol) and 3,4-diethoxybenzamide (100 mg, 0.478 mmol) in DMF (5 ml) and the reaction was heated at 170° C. for 40 min. The reaction mixture was poured in a saturated solution of NaHCO3 and extracted with EtOAc (50 ml×3). The combined organic phases were washed with a saturated solution of NaCl (2×30 ml) and concentrated under reduced pressure. The product was purified by column chromatography using CH2Cl2:MeOH (95:5) to yield 4 mg (2.7%) of the product. MS (EI) m/z: 311 (M+).

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS08796318B2
Quelldatensatzuspto-grants-2014_08
ORD IDord-46074f599f7c463d80210476cefc547e
Quellennotizuspto-grants-2014_08