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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 539796Generated: October 30, 2026

Acetonitrile → N-[5-(6-chloroimidazo[1,2-a]pyrazin-2-yl)-2-(trifluoromethyl)phenyl]-2,2-dimethyl-propanamide

https://huagongshe.com/reaction/539796

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetonitrileHCID 6342—
ReactantPivaloyl chlorideHCID 62493—
Reactant5-(6-Chloroimidazo[1,2-a]pyrazin-2-yl)-2-(trifluoromethyl)anilineHCID 57516278—
SolventPyridineHCID 1049—
ProductN-[5-(6-chloroimidazo[1,2-a]pyrazin-2-yl)-2-(trifluoromethyl)phenyl]-2,2-dimethyl-propanamideHCID 8666786025%

Reaction Conditions

Temperature80 °C

Reaction Steps

A 20 mL vial is charged with 5-(6-chloroimidazo[1,2-a]pyrazin-2-yl)-2-(trifluoromethyl)aniline (0.813 g, 2.6 mmol), acetonitrile (14 mL) and pyridine (0.420 mL). The mixture is added trimethylacetyl chloride (0.640 mL, 5.2 mmol) and stirred for 20 min at 80° C. The acetonitrile solution is concentrated onto celite and purified by silica gel chromatography (0-100% EtOAc in Hexanes) to give the title compound (256 mg, 25% yield). LCMS m/z=397.5 [M+H]+, tR=2.62 min. (compound same as Example 85)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08871767B2
Source datasetuspto-grants-2014_10
ORD IDord-d101024be81b4c9e8835056d9140e1eb
Source noteuspto-grants-2014_10