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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2092944Generated: October 31, 2026

Hydrochloric Acid → HCID 42633763, compound

https://huagongshe.com/reaction/2092944

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPyridineHCID 1049—
ReactantHCID 178423572HCID 178423572—
ReactantHCID 178506277HCID 178506277—
CatalystCopperHCID 23978—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductHCID 42633763HCID 4263376395%

Reaction Conditions

Temperature50 °C

Reaction Steps

In a 50-ml eggplant flask provided with a magnetic stirrer were placed 1.37 g (10 mmol) of 3-trifluoromethyl-1H-1,2,4-triazole, 1.32 g (3.33 mmol) of 2,4-dimethylphenylboroxine, 64 mg (1 mmol) of a copper powder, 0.8 g (10 mmol) of pyridine and then 5 ml of N,N-dimethylformamide. The mixture was stirred at 50° C. for 4 hours. Thereto were added 30 ml of ethyl acetate and 3% hydrochloric acid to give rise to phase separation. The aqueous phase was extracted with 30 mol of ethyl acetate. The ethyl acetate phase was washed with water and then with a saturated aqueous sodium chloride solution. The ethyl acetate phase was dried over anhydrous sodium sulfate and then subjected to vacuum distillation to distill off ethyl acetate to obtain a title compound as 2.3 g of a crystal. Yield: 95%

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08440838B2
Source datasetuspto-grants-2013_05
ORD IDord-c470a17d337b43d386937819c4e200e7
Source noteuspto-grants-2013_05