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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1356647Generated: November 2, 2026

Nitric Acid → HCID 18509268, compound

https://huagongshe.com/reaction/1356647

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
ReactantWaterHCID 962—
ReactantHCID 13394525HCID 13394525—
SolventAcetic AcidHCID 176—
ProductHCID 18509268HCID 1850926863%

Reaction Conditions

Temperature100 °C

Reaction Steps

4′-Bromo-N-methyl-p-toluenesulfonanilide (0.90 g (2.65 mmol)) was dissolved in 5.0 ml of acetic acid. To this, 97% fuming nitric acid (0.64 ml (15.0 mmol)) was added dropwise, and the mixture was heated at 100° C. for 1.5 hours with stirring, followed by cooling to room temperature. Then, the reaction mixture was poured into water and extracted with ethyl acetate. The extract was washed with saturated aqueous solution of sodium bicarbonate, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography with ethyl acetate-hexane (1:3) as eluent, to give 0.64 g (63%) of the title compound as pale yellow crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06586617B1
Source datasetuspto-grants-2003_07
ORD IDord-eab15e09fa6a40a49497e577f2d40661
Source noteuspto-grants-2003_07