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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1045980Generated: October 25, 2026

Acetic Anhydride → N-(1,3,5-trimethylpyrazol-4-yl)acetamide

https://huagongshe.com/reaction/1045980

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
Reactant1,3,5-trimethyl-1H-pyrazol-4-amineHCID 161603—
ReactantPotassium AcetateHCID 517044—
SolventEthyl AcetateHCID 8857—
ProductN-(1,3,5-trimethylpyrazol-4-yl)acetamideHCID 22335537104%

Reaction Conditions

Temperature25 °C

Reaction Steps

A suspension of 1,3,5-trimethylpyrazol-4-amine (1 g, 7.99 mmol), potassium acetate (0.862 g, 8.79 mmol) and acetic anhydride (0.889 mL, 7.99 mmol) in EtOAc (25 mL) was stirred at 25° C. overnight. Silica gel was added and the mixture was concentrated. The crude product was purified by flash chromatography on silica gel eluting with 0 to 5% MeOH in DCM. The solvent was evaporated to dryness to afford N-(1,3,5-trimethylpyrazol-4-yl)acetamide (1.390 g, 104%) as a off-white solid. Mass spectrum: MH+ 168

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08569298B2
Source datasetuspto-grants-2013_10
ORD IDord-47843191ec224762bd42e15b0b00fa13
Source noteuspto-grants-2013_10