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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 627719Generated: November 2, 2026

Sulfuric Acid → 3-Nitro-5-(trifluoromethyl)picolinamide

https://huagongshe.com/reaction/627719

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
Reactant3-Nitro-5-(trifluoromethyl)picolinonitrileHCID 45382147—
Product3-Nitro-5-(trifluoromethyl)picolinamideHCID 8672815586.4%

Reaction Conditions

Temperature60 °C

Reaction Steps

A round bottom flask was charged with 3-nitro-5-(trifluoromethyl)picolinonitrile (910 mg, 4.19 mmol) and sulfuric acid (4192 μl, 4.19 mmol), and the mixture was stirred at 60° C. for 16 h. Upon cooling to RT the crude mixture was poured onto ice, and the resulting solids were filtered, washed with water and dried. 3-nitro-5-(trifluoromethyl)picolinamide (850 mg, 3.62 mmol, 86% yield) was isolated as a light yellow solid. LC/MS (ESI+) m/z=236.1 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09309263B2
Source datasetuspto-grants-2016_04
ORD IDord-4b81613331e445a9ad289b2931105533
Source noteuspto-grants-2016_04