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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2255485Generated: October 29, 2026

Ethyl orthoformate → HCID 54081328, compound

https://huagongshe.com/reaction/2255485

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl orthoformateHCID 31214—
ReactantHCID 19738249HCID 19738249—
ProductHCID 54081328HCID 5408132895.6%

Reaction Conditions

Temperature130 °C

Reaction Steps

A mixture of 2-amino-4-(4-cyclohexylphenyl)thiazole hydrochloride (1.0 g) and triethyl orthoformate (5 ml) was stirred at 130° C. for 1 hour. The reaction mixture was concentrated under reduced pressure, and to the remaining crystals was added hexane, followed by filtration. The filtrate was concentrated to give crystals of 4-(4-cyclohexylphenyl)-2-ethoxymethyleneaminothiazole (1.02 g, yield of 95.6 %). Recrystallization from diethyl etherhexane produced yellowish prisms, mp of 84° to 85° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05240950
Source datasetuspto-grants-1993_08
ORD IDord-b429b4a07c1f486b9ca69eb3a7f1d078
Source noteuspto-grants-1993_08