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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1818643Generated: October 30, 2026

Diethyl Ether → HCID 20826172, compound

https://huagongshe.com/reaction/1818643

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl EtherHCID 3283—
ReactantTriethylamineHCID 8471—
ReactantN-Phenyl-o-phenylenediamineHCID 68297—
Reactant2,4-Difluorobenzoyl chlorideHCID 588081—
SolventDichloromethaneHCID 6344—
ProductHCID 20826172HCID 2082617260%

Reaction Conditions

Temperature0 °C

Reaction Steps

N-phenyl-1,2-phenylenediamine (1.84 g, 10 mmol) and 40 ml of dichloromethane were charged in a 250 ml round bottle, 3 ml of triethylamine was added, and the mixture was cooled to 0° C. 2,4-Difluoro-benzoyl chloride (1.94 g, 11 mmol) was dissolved in 40 ml of dichloromethane and then slowly added to the 250 ml round bottle. The reaction was conducted under a nitrogen atmosphere for 6 hours. After the reaction was complete, ether was added to form precipitate. The solid product was collected by filtration, washed with ether several times, and heated under reduced pressure to form 2-(2,4-difluoro-phenyl)-1-phenyl-1H-benzoimidazole (yield=1.83 g, 60%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07601437B2
Source datasetuspto-grants-2009_10
ORD IDord-c1301280758c4ea1b304b06d30c008a6
Source noteuspto-grants-2009_10