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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1860458Generated: October 31, 2026

Nitric Acid → HCID 178512554, compound

https://huagongshe.com/reaction/1860458

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 numberUS06531479B2
Source datasetuspto-grants-2003_03
ORD IDord-c3ddc44b0cf54638884ae46b813c32c3
Source noteuspto-grants-2003_03