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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1604440Generated: October 31, 2026

Hydrochloric Acid → HCID 9803806, compound

https://huagongshe.com/reaction/1604440

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant3-Cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)-5-formyl-4-trifluoromethylthiopyrazoleHCID 11812098—
ReactantHCID 178418348HCID 178418348—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventDiethyl EtherHCID 3283—
ProductHCID 9803806HCID 9803806—

Reaction Conditions

Temperature0 °C

Reaction Steps

Copper (I) iodide (6.1 g, 0.032 mol) was suspended in anhydrous diethyl ether and cooled to 0° C. Methyllithium (1.6 M in diethyl ether, 40 ml, 0.064 mol) was added via cannula and stirred 10 minutes. A solution of the product of Example 3 (10 g, 0.023 mol) in diethyl ether was added via cannula creating a bright yellow suspension. After 15 minutes, 10% aqueous hydrochloric acid (40 ml) was added while venting the reaction vessel. The remaining suspension was filtered through Celite® and washed with diethyl ether several times. The organic phase was washed with saturated sodium hydrogen carbonate solution, saturated aqueous sodium chloride solution, dried over magnesium sulfate, filtered and concentrated under reduced pressure. Trituration from pentane provided crystals that were purified by silica gel chromatography using ethyl acetate:hexanes. The title compound was isolated as a white solid (7.56 g), m.p. about 123° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05994386
Source datasetuspto-grants-1999_11
ORD IDord-95ba7379f4be41f0a63df7633a8c46e7
Source noteuspto-grants-1999_11