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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1887987Generated: October 27, 2026

2-Chloro-3-nitropyridine → N-(4-Methylphenyl)-3-nitropyridin-2-amine

https://huagongshe.com/reaction/1887987

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Chloro-3-nitropyridineHCID 79613—
ReactantDiisopropylethylamineHCID 81531—
Reactant4-Amino-2'-methylbiphenylHCID 136799—
SolventEthyl AcetateHCID 8857—
Solvent1,4-DioxaneHCID 31275—
ProductN-(4-Methylphenyl)-3-nitropyridin-2-amineHCID 12445401—

Reaction Conditions

Temperature80 °C

Reaction Steps

2-chloro-3-nitropyridine (100 mg, 0.63 mmol) was dissolved in dioxane (4 mL) in a round bottom flask to which p-tolylaniline (68 mg, 0.63 mmol) was added followed by addition of diisopropylethylamine (0.22 mL). The reaction mixture was heated to 80° C. for 24 hours and stopped when complete as observed by LCMS. After cooling to room temperature, the solvent was removed under reduced pressure to afford an oily residue. The residue was dissolved in ethyl acetate (20 mL) and washed with water and brine (5 mL each respectively). The organic phase was separated and dried over Na2SO4. After filtration the solvent was removed under reduced pressure. The crude product was carried on to the next step without further purification. LCMS [M+H]: 230.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08501770B2
Source datasetuspto-grants-2013_08
ORD IDord-80c450600656478ab50c11292e3a316f
Source noteuspto-grants-2013_08