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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1793049Generated: October 25, 2026

1,1'-Carbonyldiimidazole → 2-(4-butyl-2-fluoroanilino)-3,4-difluoro-N-(2-hydroxyethoxy)benzamide

https://huagongshe.com/reaction/1793049

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
ReactantEthanol, 2-(aminooxy)-HCID 3014186—
Reactant2-(4-Butyl-2-fluoroanilino)-3,4-difluorobenzoic acidHCID 22025690—
Product2-(4-butyl-2-fluoroanilino)-3,4-difluoro-N-(2-hydroxyethoxy)benzamideHCID 1015051668%

Reaction Steps

The title compound was prepared from reaction of 2-(4-butyl-2-fluoroanilino)-3,4-difluorobenzoic acid with CDI and 2-(aminooxy)ethanol by the general procedure of Example 1, Step E, then purified by flash column chromatography on silica (50% EtOAc/Hexane as eluant) to give 2-(4-butyl-2-fluoroanilino)-3,4-difluoro-N-(2-hydroxyethoxy)benzamide as a white solid (68%); m.p. (EtOAc/Hexane) 163–165° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07078438B2
Source datasetuspto-grants-2006_07
ORD IDord-6315cdb1a03b4202a2e59ded1d397c50
Source noteuspto-grants-2006_07