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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 41125Generated: October 26, 2026

Phenacyl bromide → 2-(3,4-Diethoxyphenyl)-4-phenyloxazole

https://huagongshe.com/reaction/41125

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenacyl bromideHCID 6259—
Reactant3,4-DiethoxybenzamideHCID 340342—
ReactantSodium BicarbonateHCID 516892—
SolventDimethylformamideHCID 6228—
Product2-(3,4-Diethoxyphenyl)-4-phenyloxazoleHCID 5914549117%

Reaction Conditions

Temperature170 °C

Reaction Steps

In a microwave vial were dissolved 2-bromo-1-phenylethanone (95 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 (30 ml×2) and concentrated under reduced pressure. The product was purified by column chromatography using CH2Cl2:MeOH (95:5) to yield 25 mg (17%) of the product. MS (EI) m/z: 310 (M+)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08530503B2
Source datasetuspto-grants-2013_09
ORD IDord-23547f41ebaf4837bd1d7a5c574a0f8c
Source noteuspto-grants-2013_09