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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 469183Generated: October 25, 2026

Ammonia → 2,6-Dichloro-5-nitropyrimidin-4-amine

https://huagongshe.com/reaction/469183

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantTriethylamineHCID 8471—
Reactant2,4,6-Trichloro-5-nitropyrimidineHCID 4297843—
SolventTetrahydrofuranHCID 8028—
Product2,6-Dichloro-5-nitropyrimidin-4-amineHCID 350811—

Reaction Conditions

Temperature0 °C

Reaction Steps

A solution of 2,4,6-trichloro-5-nitropyrimidine (94 mg, 0.413 mmol) in THF (5 mL) was cooled to −78° C. and treated with Et3N (110 μL, 0.757 mmol), followed by NH3 (7 N in MeOH, 50 μL, 0.344 mmol). The reaction was warmed to 0° C. Once TLC indicated complete consumption of the starting material, the crude product solution was immediately used in the reaction below (Scheme 40).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08629142B2
Source datasetuspto-grants-2014_01
ORD IDord-78d78ece27574972ab7b607ff3724d01
Source noteuspto-grants-2014_01