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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 908046Generated: October 30, 2026

Ethyl Acetate → HCID 67260487, compound

https://huagongshe.com/reaction/908046

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant1-Methyl-2-imidazolecarboxaldehydeHCID 139575—
ReactantSodium ethoxideHCID 2723922—
ReactantHCID 178463257HCID 178463257—
SolventEthyl PropionateHCID 7749—
ProductHCID 67260487HCID 672604878%

Reaction Conditions

Temperature30 °C

Reaction Steps

To a solution of 1-methyl-1H-imidazole-2-carbaldehyde (580 mg, 5.2 mmol), and (E)-4-(1-(4-fluorophenyl)ethylideneamino)isobenzofuran-1(3H)-one (1 g, 3.7 mmol) in ethyl propionate (20 ml) was added rapidly EtONa [sodium (340 mg, 14.8 mmol) in 8 mL ethanol] at 0° C., then the mixture was stirred at 30° C. for 3 hr. The resulting mixture was added ethyl acetate (150 mL) and washed with water (25 mL×3), the organic layers were combined and evaporated to dryness to give the crude product, which was purified by column chromatography (silica gel, dichloromethane:methanol=200:1 to 50:1) to afford the title compound as a red solid (120 mg, yield 8%). LC-MS (ESI) m/z: 408 (M+1)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08012976B2
Source datasetuspto-grants-2011_09
ORD IDord-3c0b36e4c1ff479f80163bcbdaf168b7
Source noteuspto-grants-2011_09