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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1749422Generated: November 1, 2026

Dimethylformamide → HCID 118162204, compound

https://huagongshe.com/reaction/1749422

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantDiisopropylethylamineHCID 81531—
Reactant2,4-Dichloro-5-(trifluoromethyl)pyrimidineHCID 2782774—
ProductHCID 118162204HCID 11816220417.2%

Reaction Conditions

Temperature0 °C

Reaction Steps

(4-(Trifluoromethyl)pyridin-3-yl)methanamine, HCl (1.0 equiv.) was placed in a round bottom flask with DIEA (2.5 M) and DMF (0.6 M). The flask was cooled to 0° C. and 2,4-dichloro-5-(trifluoromethyl)pyrimidine (1.0 equiv.) was slowly added portion-wise. The reaction mixture was stirred overnight and allowed to warm to room temperature. The reaction mixture was loaded directly onto a silica gel column and purified using 0-20% ethyl acetate in hexanes followed by 20% ethyl acetate in hexanes. Fractions containing the desired isomer (lower Rf spot by thin layer chromatography) were combined and volatile organic solvents were removed under reduced pressure to give 4-chloro-5-(trifluoromethyl)-N-((4-(trifluoromethyl)pyridin-3-yl)methyl)pyrimidin-2-amine (17.2% yield) as a white solid. MS (ESI) m/z 357.2 [M+1]+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09156798B2
Source datasetuspto-grants-2015_10
ORD IDord-8ca9d4ac91a8407f8f2e476586a15ef9
Source noteuspto-grants-2015_10