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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1759755Generated: November 1, 2026

Hydrochloric Acid → 4-Anilino-5-bromo-2-(4-hydroxyanilino)pyrimidine

https://huagongshe.com/reaction/1759755

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-AminophenolHCID 403—
Reactant5-bromo-2-chloro-N-phenylpyrimidin-4-amineHCID 11403389—
Solvent1-ButanolHCID 263—
Product4-Anilino-5-bromo-2-(4-hydroxyanilino)pyrimidineHCID 2204812332%

Reaction Conditions

Temperature100 °C

Reaction Steps

4-Aminophenol (0.73 g, 7.8 mmol) and concentrated hydrochloric acid (1.30 ml, 7.1 mmol) were added to 4-anilino-5-bromo-2-chloropyrimidine (Method 1; 3.0 g, 7.1 mmol) in n-butanol (30 ml), and the mixture was heated at 100° C. for 12 hours. The solid which precipitated out on cooling was filtered off and washed with n-butanol and diethyl ether to give the product (0.80 g, 32%). MS (MH+): 357, 359.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06838464B2
Source datasetuspto-grants-2005_01
ORD IDord-7e3b4f59ce5142058f3caa293d495a99
Source noteuspto-grants-2005_01