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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 654634Generated: October 30, 2026

2-(Methylamino)ethanol → 4-[(2-Hydroxyethyl)(methyl)amino]benzaldehyde

https://huagongshe.com/reaction/654634

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(Methylamino)ethanolHCID 8016—
ReactantPotassium CarbonateHCID 11430—
Reactant4-FluorobenzaldehydeHCID 68023—
CatalystTrioctylmethylammonium chlorideHCID 21218—
SolventDimethyl SulfoxideHCID 679—
Product4-[(2-Hydroxyethyl)(methyl)amino]benzaldehydeHCID 3614316—

Reaction Steps

A 2 liter three (3) necked flask fitted with a mechanical stirrer, thermometer and condenser is charged with 134 g of 2-(methylamino)ethanol, 74.4 g of 4-fluorobenzaldehyde, 1 ml of Aliquat 336, 750 ml of dimethylsulfoxide and 82.8 g of anhydrous potassium carbonate. The mixture is heated at 95° C. for three (3) days. The product mixture is cooled and poured into 3 liters of ice water. The resultant solid precipitate is filtered, washed with water, and vacuum dried. The crude product is recrystallized from toluene, m.p. 72° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05133037
Source datasetuspto-grants-1992_07
ORD IDord-c0c1940ec9f0403d80f56a54ec6054f6
Source noteuspto-grants-1992_07