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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2232638Generated: October 29, 2026

N-(4,5-Difluoro-2-nitrophenyl)acetamide → 4,5-Difluoro-2-nitroaniline

https://huagongshe.com/reaction/2232638

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-(4,5-Difluoro-2-nitrophenyl)acetamideHCID 540127—
SolventHydrochloric AcidHCID 313—
SolventEthanolHCID 702—
Product4,5-Difluoro-2-nitroanilineHCID 15715194.3%

Reaction Steps

A solution of N-(4,5-difluoro-2-nitrophenyl)acetamide (70 g) in concentrated hydrochloric acid (110 ml) and ethanol (440 ml) was refluxed for 2 hours. The reaction mixture was poured into ice water (1.5 liter) and the resulting precipitate was collected by filtration and washed with chilled water sufficiently to give the title compound (53.2 g) as yellow prisms, mp 109°-109.5° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04788320
Source datasetuspto-grants-1988_11
ORD IDord-416bb3868e9742dd9c608a443b00b89b
Source noteuspto-grants-1988_11