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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1091672Generated: October 31, 2026

Ethyl Acetate → 2-(6-nitrobenzothiazol-2(3H)-ylidene)-2-(4-trifluoromethylpyrimidin-2-yl)acetonitrile

https://huagongshe.com/reaction/1091672

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantPotassium CarbonateHCID 11430—
Reactant2-(Methylthio)-6-nitro-1,3-benzothiazoleHCID 305552—
Reactant2-(4-(Trifluoromethyl)pyrimidin-2-yl)acetonitrileHCID 64586466—
SolventEthanolHCID 702—
Product2-(6-nitrobenzothiazol-2(3H)-ylidene)-2-(4-trifluoromethylpyrimidin-2-yl)acetonitrileHCID 6659328396%

Reaction Conditions

Temperature160 °C

Reaction Steps

To a solution of 2-(methylthio)-6-nitro-1,3-benzothiazole (226 mg, 1.0 mmol) in ethanol (3.5 mL) was added 2-(4-trifluoromethylpyrimidin-2-yl)acetonitrile (187 mg, 1.0 mmol) and potassium carbonate (207 mg, 1.5 mmol). The orange mixture was heated in the microwave at 160° C. for 15 min, then cooled and poured into EA (60 mL). The organic layer was washed twice with 1N hydrochloric acid (25 mL each), brine (25 mL), and water (5 mL), then dried with magnesium sulfate, filtered, and concentrated under reduced pressure to give 2-(6-nitrobenzothiazol-2(3H)-ylidene)-2-(4-trifluoromethylpyrimidin-2-yl)acetonitrile (349 mg, 96% yield) as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08129396B2
Source datasetuspto-grants-2012_03
ORD IDord-de4496d4cb5942b3ba948d9a4088c081
Source noteuspto-grants-2012_03