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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1039892Generated: November 1, 2026

Acetic Acid → HCID 67431932, compound

https://huagongshe.com/reaction/1039892

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
Reactant3,5-DibromoanilineHCID 221512—
Reactant2-Chloro-4-methylpyrimidineHCID 11629607—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 67431932HCID 6743193285.4%

Reaction Conditions

Temperature120 °C

Reaction Steps

A solution of 3,5-dibromoaniline (2.93 g, 11.67 mmol), 2-chloro-4-methylpyrimidine (1.5 g, 11.67 mmol), and acetic acid (0.701 mL, 12.25 mmol) in 1,4-dioxane (23.5 mL) was sealed in a pressure vessel under an argon atmosphere and heated at 120° C. for 17 hours. After being cooled to room temperature, the reaction mixture was partitioned between ethyl acetate (100 mL) and saturated aqueous sodium bicarbonate solution (40 mL). The layers were separated, and the organic layer was washed with brine, dried over sodium sulfate, filtered, and concentrated. Silica gel flash chromatography (10% to 30% ethyl acetate/hexanes) afforded N-(3,5-dibromophenyl)-4-methylpyrimidin-2-amine (3.6 g, 9.97 mmol, 85% yield, 95% purity) as a light yellow solid. MS ESI: [M+H]+ m/z 343.8.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08551984B2
Source datasetuspto-grants-2013_10
ORD IDord-46977bcc8a1d43ee843e48ca448d019a
Source noteuspto-grants-2013_10