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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 259428Generated: October 25, 2026

Sodium Hydroxide → Ethnor

https://huagongshe.com/reaction/259428

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantEthyl 1-(1-phenylethyl)-1H-imidazole-5-carboxylate sulfateHCID 3084993—
SolventWaterHCID 962—
ProductEthnorHCID 36339—

Reaction Steps

A solution of 47.5 parts of (-)-ethyl 1-(1-phenylethyl)-1H-imidazole-5-carboxylate sulfate in 500 parts of water is alkalized with 14 parts of sodium hydroxide solution 50%. The product is extracted twice with 325 parts of dichloromethane. The combined extracts are dried, filtered and evaporated in vacuo. The residue is crystallized from 2,2'-oxybispropane, yielding (-)-ethyl 1-(1-phenylethyl)-1H-imidazole- 5-carboxylate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04038286
Source datasetuspto-grants-1977_07
ORD IDord-63dedf4ca74e49639e8b76e2890343a4
Source noteuspto-grants-1977_07