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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1179257Generated: October 27, 2026

Aniline → 6-chloro-2-methyl-N-phenylpyrimidin-4-amine

https://huagongshe.com/reaction/1179257

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAnilineHCID 6115—
ReactantDiisopropylethylamineHCID 81531—
Reactant4,6-Dichloro-2-methylpyrimidineHCID 234997—
Solvent1,4-DioxaneHCID 31275—
Product6-chloro-2-methyl-N-phenylpyrimidin-4-amineHCID 4507176464.7%

Reaction Steps

2-Methyl-4,6-dichloropyrimidine (430 mg; 2.64 mMol) was refluxed in p-dioxane 10 mL with DIEA (575 uL; 426 mg; 3.3 mMol) and aniline (239 uL; 247 mg; 2.65 mMol) for 48 hrs under N2. The solvent was removed under reduced pressure and the residue partitioned between ethyl acetate and 0.5 N HCl. The organic fraction was washed with water, brine, and dried over Na2SO4) and the solvent removed under reduced pressure. Crude material was triturated with MTBE, suction filtered to isolate and washed with more MTBE and air dried to afford 375 mg of white solid, 64.5% yield. 1H NMR (500 MHz DMSO-d6) d 8.9 (s, 1H), 7.7 (s, 1H), 7.55 (m, 2H), 7.27 (t, 2H), 6.95 (t, 1H), 6.0 (s, 1H) 2.25 (s, 3H) ppm

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07279469B2
Source datasetuspto-grants-2007_10
ORD IDord-47ac634527d24f05af1686a95e352b9e
Source noteuspto-grants-2007_10