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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 895606Generated: October 31, 2026

Diethylamine → N,N-diethyl-4-(hydroxymethyl)benzamide

https://huagongshe.com/reaction/895606

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethylamineHCID 8021—
Reactant1-HydroxybenzotriazoleHCID 75771—
Reactant4-(Hydroxymethyl)benzoic acidHCID 76360—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductN,N-diethyl-4-(hydroxymethyl)benzamideHCID 5858632394%

Reaction Steps

4-Hydroxymethylbenzoic acid (10.0 g) was dissolved in N,N-dimethylformamide (200 ml), added with 1-hydroxybenzotriazole (9.766 g) and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (WSC.HCl, 13.855 g) and stirred at room temperature for 1 hour. The reaction mixture was added with diethylamine (13.6 ml) and further stirred at room temperature for 1 hour. The reaction mixture was added with water (200 ml) and extracted twice with dichloromethane (200 ml). The organic layer was dried over anhydrous magnesium sulfate, and then the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (elution solvent: hexane:ethyl acetate=1:2) to obtain 12.80 g of the title compound. Yield: 94%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06916822B2
Source datasetuspto-grants-2005_07
ORD IDord-738aa043be834859924adc43bad5437a
Source noteuspto-grants-2005_07