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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 54369Generated: October 25, 2026

Nitric Acid → N-[4-Chloro-2-nitro-5-(trifluoromethyl)phenyl]acetamide

https://huagongshe.com/reaction/54369

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
Reactantn-[4-Chloro-3-(trifluoromethyl)phenyl]acetamideHCID 67676—
SolventSulfuric AcidHCID 1118—
ProductN-[4-Chloro-2-nitro-5-(trifluoromethyl)phenyl]acetamideHCID 2231800491%

Reaction Conditions

Temperature0 °C

Reaction Steps

To 3-acetamido-6-chlorobenzotrifluoride (908 mg, 3.82 mmol) in concentrated H2SO4 (4 mL) at 0° C. was added dropwise 70% HNO3 (0.5 mL, Baker). The mixture was stirred at 0° C. for 0.5 h, then at room temperature 3 h, and it was poured into ice water (15 g). The precipitate was collected by filtration, affording 990 mg (91%) of crude 3-acetamido-6-chloro-4-nitrobenzotrifluoride. It was crystallized from EtOH/H2O to give 770 mg of pure compound as yellow needles. 1H NMR (CDCl3): δ2.326 (s, 3H), 8.345 (s, 1H), 9.293 (s, 1H), 10.222 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05622952
Source datasetuspto-grants-1997_04
ORD IDord-33cc602ac41342cb9e5ad6e79081599a
Source noteuspto-grants-1997_04