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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1194424Generated: November 1, 2026

Dichloromethane → 1,3-Diamino-2-(4-methoxyphenyl)imidazolium chloride

https://huagongshe.com/reaction/1194424

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantO-(Diphenylphosphinyl)hydroxylamineHCID 10955453—
Reactant1-Amino-2-(p-methoxyphenyl)imidazoleHCID 22167398—
Product1,3-Diamino-2-(4-methoxyphenyl)imidazolium chlorideHCID 70360942—

Reaction Steps

0.1 g of 1-amino-2-(4-methoxyphenyl)imidazole is dissolved in 10 ml of dichloromethane. The solution is treated portionwise during 8 days with 0.29 g of O-diphenylphosphinylhydroxylamine, evaporated and the residue is suspended in 10 ml of water. The difficultly soluble diphenylphosphinic acid is removed by filtration and the filtrate is placed on a column loaded with Amberlite IRA 400 (chloride), whereupon the column is eluted with water. There is obtained 1,3-diamino-2-(4-methoxyphenyl)imidazolium chloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04814332
Source datasetuspto-grants-1989_03
ORD IDord-75439abee5ba4a92a810ceec45b5a418
Source noteuspto-grants-1989_03