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
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetonitrile | HCID 6342 | — |
| Reactant | Pivaloyl chloride | HCID 62493 | — |
| Reactant | 5-(6-Chloroimidazo[1,2-a]pyrazin-2-yl)-2-(trifluoromethyl)aniline | HCID 57516278 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | N-[5-(6-chloroimidazo[1,2-a]pyrazin-2-yl)-2-(trifluoromethyl)phenyl]-2,2-dimethyl-propanamide | HCID 86667860 | 25% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08871767B2 |
|---|
| Source dataset | uspto-grants-2014_10 |
|---|
| ORD ID | ord-d101024be81b4c9e8835056d9140e1eb |
|---|
| Source note | uspto-grants-2014_10 |
|---|