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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 253698Generated: October 26, 2026

Acetic Anhydride → N-(5-nitropyrimidin-2-yl)acetamide

https://huagongshe.com/reaction/253698

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
Reactant5-Nitropyrimidin-2-amineHCID 76490—
SolventTolueneHCID 1140—
ProductN-(5-nitropyrimidin-2-yl)acetamideHCID 45071770—

Reaction Conditions

Temperature90 °C

Reaction Steps

To 2-amino-5-nitropyrimidine (0.42 g, 3.0 mmol) dissolved in toluene (2 ml) was added acetic anhydride (1.4 ml, 15 mmol). The reaction mixture was stirred at 90° C. for 15 hr, after which an additional amount of acetic anhydride was added (0.7 mL) and the mixture was stirred at reflux for another 16 h. The solvent was removed in vacuo and to the residue was added hexane (10 mL) and DCM (1 mL). The solid was collected by filtration, dried to give N-(5-nitropyrimidin-2-yl)acetamide as an off-white solid. MS (ESI, pos. ion) m/z: 183 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07872128B2
Source datasetuspto-grants-2011_01
ORD IDord-e0baeb2ebcfd484482e11216a87fde25
Source noteuspto-grants-2011_01