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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1937388Generated: October 26, 2026

Aniline → Phenyl-pyrido[2,3-d]pyrimidin-4-yl-amine

https://huagongshe.com/reaction/1937388

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAnilineHCID 6115—
ReactantAmmonium HydroxideHCID 14923—
Reactant4-Chloropyrido[2,3-d]pyrimidineHCID 569039—
ProductPhenyl-pyrido[2,3-d]pyrimidin-4-yl-amineHCID 2246082227%

Reaction Steps

4-Chloropyrido [2,3-d]pyrimidine (0.15 g, 0.91 mmol) was carefully added to a solution of aniline (0.15 g, 1.61 mmol) on water (1.5 mL). The solution was heated for 0.5 hour on a steam bath, cooled, and then basified with conc. ammonium hydroxide. The crude precipitate was collected by filtration and recrystallized from 95% ethanol to give the title product as yellow crystals (0.054 g, 27%). MP 258° C.; LC-MS: 223 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06395733B1
Source datasetuspto-grants-2002_05
ORD IDord-53987377151c4625aeaa3755119252ec
Source noteuspto-grants-2002_05