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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1663461Generated: October 30, 2026

Methanol → 6-Chloro-5-fluoro-2-methylpyrimidin-4-amine

https://huagongshe.com/reaction/1663461

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantAmmonium HydroxideHCID 14923—
Reactant4,6-Dichloro-5-fluoro-2-methylpyrimidineHCID 13731033—
SolventWaterHCID 962—
Product6-Chloro-5-fluoro-2-methylpyrimidin-4-amineHCID 5528362461.1%

Reaction Conditions

Temperature70 °C

Reaction Steps

Part C: A mixture of 4,6-dichloro-5-fluoro-2-methylpyrimidine (1.55 g, 8.56 mmol), ammonium hydroxide (35%, 10.0 mL, 257 mmol), and MeOH (1.00 mL) was heated, in a sealed tube, at 70° C. for 2 h. The reaction mixture was cooled to RT, and a precipitate was formed. The reaction mixture was diluted with water (ca. 10 mL) and was stirred 30 min. The solids were collected by suction filtration, washed with water and air-dried to give 4-amino-6-chloro-5-fluoro-2-methylpyrimidine (845 mg, 61%) as a tan solid. LCMS (m/z): 162,164 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08034954B2
Source datasetuspto-grants-2011_10
ORD IDord-69b02f7e6dba457ab58b732d0aef4f6b
Source noteuspto-grants-2011_10