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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1410254Generated: November 2, 2026

Nitric Acid → 4-Chloro-2-fluoro-5-nitrobenzonitrile

https://huagongshe.com/reaction/1410254

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
ReactantSulfuric AcidHCID 1118—
Reactant4-Chloro-2-fluorobenzonitrileHCID 93655—
Product4-Chloro-2-fluoro-5-nitrobenzonitrileHCID 59529860—

Reaction Conditions

Temperature1.5 °C

Reaction Steps

A mixture of 4-chloro-2-fluorobenzonitrile (4.62 g; 29.7 mmol) in cone. H2SO4 (42 mL) was treated dropwise with cone. HNO3 (3.9 mL) at 1-2° C. After stirring at 1-2° C. for 2 h the mixture was poured into ice and filtered to give the sub-title compound. Yield: 5.18 g (87%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08921405B2
Source datasetuspto-grants-2014_12
ORD IDord-421a8b23a4c345c6bd301bf873a25e6a
Source noteuspto-grants-2014_12