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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 727822Generated: October 31, 2026

Tetrahydrofuran → HCID 19825152, compound

https://huagongshe.com/reaction/727822

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantEthyl AcetateHCID 8857—
ReactantEthyl chloroformateHCID 10928—
ReactantSodium hydrideHCID 24758—
ReactantHCID 136341188HCID 136341188—
ProductHCID 19825152HCID 19825152—

Reaction Steps

1-(dimethylsulphamoyl)-2-(hydroxyiminomethyl)-4-phenylimidazole, m.p 165°-170° (dec.). A slurry of this product (0.882 g) in dry tetrahydrofuran (20 ml) was added to sodium hydride (90 mg of 80g suspension in oil) in dry tetrahydrofuran. After 1.5 hours at room temperature ethyl chloroformate (0.285 ml) was added and the mixture stirred overnight. The mixture was then added to ethyl acetate and worked up in conventional manner to give a viscous oil. This was purified by flash column chromatography to give 2-cyano-1-ethoxycarbonyl-3-phenylimidazole, m.p. 109°-111°. (Compound 3)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05045557
Source datasetuspto-grants-1991_09
ORD IDord-e4378b2e678043359ee6a5272d3a1ed0
Source noteuspto-grants-1991_09