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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 47202Generated: October 29, 2026

Nitric Acid → HCID 178512554, compound

https://huagongshe.com/reaction/47202

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
Reactant2,4-DifluoroanilineHCID 9709—
ReactantCyanamideHCID 9864—
SolventEthanolHCID 702—
ProductHCID 178512554HCID 17851255440%

Reaction Steps

To a mixture of 2,4-difluoroaniline (25 mmol, 3.2 g) in EtOH (10 mL) in an ice bath was added nitric acid (69% aq soln.; 1.8 mL) dropwise. After completion of the addition cyanamide (50% aq. soln.; 4 mL) was added. The reaction mixture was refluxed under N2 for 22 h. The solvent was evaporated. The solid residue was washed with EtOH and was dried under high vacuum to afford the title compound as a purple solid (2.32 g, 40%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06699854B2
Source datasetuspto-grants-2004_03
ORD IDord-f864972e90794ee39827fc1c7b384905
Source noteuspto-grants-2004_03