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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 591501Generated: October 25, 2026

tert-Butanol → Ethyl 4-methyl-2-(trifluoromethyl)thiazole-5-carboxylate

https://huagongshe.com/reaction/591501

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-ButanolHCID 6386—
ReactantEthyl 2-chloroacetoacetateHCID 11858—
ReactantTrifluoroethanethioamideHCID 4425751—
SolventEthyl AcetateHCID 8857—
ProductEthyl 4-methyl-2-(trifluoromethyl)thiazole-5-carboxylateHCID 46835627—

Reaction Steps

To a mixture of 2,2,2-trifluoroethanethioamide (200 mg) and t-BuOH (10 mL) was added ethyl 2-chloro-3-oxobutanoate (0.217 mL) at room temperature. The mixture was refluxed for 2 days. After cooling, EtOAc was poured into the mixture, and the mixture was washed successively with water and brine, dried over Na2SO4 and concentrated in vacuo. The residue was purified by silica gel column chromatography (NH, EtOAc/hexane) to give the title compound (133 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09238639B2
Source datasetuspto-grants-2016_01
ORD IDord-efea65c911b44c3f9e75c2d061f7696b
Source noteuspto-grants-2016_01