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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 359637Generated: October 30, 2026

2-(Methylamino)ethanol → 2-Aminobenzaldehyde

https://huagongshe.com/reaction/359637

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(Methylamino)ethanolHCID 8016—
ReactantPotassium CarbonateHCID 11430—
Reactant4-FluorobenzaldehydeHCID 68023—
SolventDimethyl SulfoxideHCID 679—
Product2-AminobenzaldehydeHCID 68255—

Reaction Conditions

Temperature95 °C

Reaction Steps

A reactor is charged with 2-(methylamino)ethanol (134 g, 1.8 moles), 4-fluorobenzaldehyde (74.4 g, 0.6 mole), potassium carbonate (82.8 g, 0.6 mole) and dimethylsulfoxide (750 ml), and the mixture is heated at 95° C. for 72 hours. The product mixture is cooled and poured into three liters of ice water. The yellow solid that precipitates is filtered, washed with water, and dried in a vacuum oven, mp 72° C. The 4-[N-(2-hydroxyethyl)-N-methylamino]benzaldehyde product is recrystallized from water as needle-like crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05002361
Source datasetuspto-grants-1991_03
ORD IDord-dc9aabf3cc724bddb97be13e78aa80bc
Source noteuspto-grants-1991_03