Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 35946Generated: October 29, 2026

Dimethylformamide → HCID 22116938, compound

https://huagongshe.com/reaction/35946

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantTrityl chlorideHCID 6456—
ReactantTriethylamineHCID 8471—
Reactant4-(3-(4-Hydroxybutyl)-4,4-dimethyl-2,5-dioxo-1-imidazolidinyl)-2-(trifluoromethyl)benzonitrileHCID 132981—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventWaterHCID 962—
SolventDiethyl EtherHCID 3283—
ProductHCID 22116938HCID 2211693876.2%

Reaction Conditions

Temperature40 °C

Reaction Steps

370 mg of the product of Example 58, 307 mg of trityl chloride in the presence of 10 mg of 4-dimethylamino-pyridine, 0.25 ml of triethylamine and 4 ml of dimethylformamide were stirred at ambient temperature for 16 hours. The mixture was heated to 40° C. for 4 hours, poured into water and extraction was carried out with ether. The extracts were washed with water and dried and the solvent was eliminated under reduced pressure. The residue was chromatographed on silica (eluant: cyclohexane--ethyl acetate 75-25) to obtain 467 mg of the expected product with a Rf=0.25.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05411981
Source datasetuspto-grants-1995_05
ORD IDord-c07010a63ff843e696b77d4744466c6e
Source noteuspto-grants-1995_05