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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 414372Generated: October 29, 2026

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

https://huagongshe.com/reaction/414372

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 numberUS04791225
Source datasetuspto-grants-1988_12
ORD IDord-0f9277b93e23451288afd8089153f2bf
Source noteuspto-grants-1988_12