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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1192858Generated: November 4, 2026

Hydrochloric Acid → HCID 25267778, compound

https://huagongshe.com/reaction/1192858

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
Reactant4-Isothiocyanato-2-(trifluoromethyl)benzonitrileHCID 11615540—
ReactantHCID 57672608HCID 57672608—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 25267778HCID 25267778—

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 4-Isothiocyanato-2-trifluoromethylbenzonitrile (96) (36 mg, 0.16 mmol) and 4-[4-(1-Cyanocyclopentyl amino)phenyl]butanenitrile (93) (20 mg, 0.08 mmol) in DMF (1 mL) was heated under microwave irradiation at 80° C. for 6 h. To this mixture was added methanol (10 mL) and aq. 1 N HCl (3 mL). The second mixture was refluxed for 1.5 h. After being cooled to room temperature, the reaction mixture was poured into cold water (20 mL) and extracted with ethyl acetate (30 mL). The organic layer was dried over MgSO4, concentrated and the residue was purified by silica gel column chromatography (hexane:ethyl acetate, 2:1) to give 4-(1-(4-(3-Cyanopropyl)phenyl)-4-oxo-2-thioxo-1,3-diazaspiro[4.4]non-3-yl)-2-trifluoromethylbenzonitrile (92) [ND-2]

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08680291B2
Source datasetuspto-grants-2014_03
ORD IDord-749dc542c194422099cf359323e4119f
Source noteuspto-grants-2014_03