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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 868952Generated: October 25, 2026

Ammonium Hydroxide → Pyrimidine, 4-amino-6-chloro-2,5-dimethyl-

https://huagongshe.com/reaction/868952

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium HydroxideHCID 14923—
Reactant4,6-Dichloro-2,5-dimethylpyrimidineHCID 237013—
SolventEthanolHCID 702—
ProductPyrimidine, 4-amino-6-chloro-2,5-dimethyl-HCID 205584—

Reaction Conditions

Temperature80 °C

Reaction Steps

A microwave vial was charged with 4,6-dichloro-2,5-dimethylpyrimidine (523 mg, 2.95 mmol) and ammonium hydroxide (8 mL) in ethanol (4 mL). The vial was heated to 80° C. and stirred for 8 h. After concentration under reduced pressure, the reaction mixture was extracted with EtOAc (15 mL×8). The combined organic layers were washed with brine (30 mL), dried over Na2SO4 and concentrated to give 6-chloro-2,5-dimethylpyrimidin-4-amine as a yellow solid (411 mg). MS (ESI): m/z 158 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08969349B2
Source datasetuspto-grants-2015_03
ORD IDord-ea626cb6c9be42e284ebcf6abfc8c613
Source noteuspto-grants-2015_03