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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2183440Generated: November 2, 2026

Ethanol → HCID 76545642, compound

https://huagongshe.com/reaction/2183440

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantSodium AcetateHCID 517045—
ReactantHCID 18922168HCID 18922168—
SolventEthyl acetate hexaneHCID 21226206—
ProductHCID 76545642HCID 7654564294%

Reaction Conditions

Temperature85 °C

Reaction Steps

To a r.b. flask (500 cm3) was added the ethyl oxo-thiazol-5-ylacetate (6.30 g, 34.02 mmol) to ethanol (ca. 180 cm3) with stirring. Sodium acetate (3.06 g, 37.30 mmol) and hydroxylamine hydrochloride (3.78 g, 54.43 mmol) were then added to give an off-white suspension. This was brought to reflux at 85° C. for 1 hour. Reaction monitored by TLC (60% hexane/ethyl acetate; s.m. r.f 0.5, prod. r.f. 0.3.). Reaction cooled and concentrated in vacuo. Product taken up in ethyl acetate (c.a. 200 cm3) and washed with 5% hydrochloric acid solution. Ethyl acetate layer was dried over magnesium sulphate and evaporated to dryness to give a cream solid (6.372 g, 31.825 mmol) [94% Yield].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06900196B2
Source datasetuspto-grants-2005_05
ORD IDord-e8a0f5a427ad4178a39b590a4110d919
Source noteuspto-grants-2005_05