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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2249131Generated: October 27, 2026

Ethanolamine → HC Yellow No. 15

https://huagongshe.com/reaction/2249131

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolamineHCID 700—
ReactantChloroformHCID 6212—
Reactant4-Chloro-3-nitrobenzamideHCID 27942—
SolventMethanolHCID 887—
ProductHC Yellow No. 15HCID 21909558—

Reaction Steps

Add 6.0 g (0.03 moles) 4-chloro-3-nitrobenzamide to 60 ml 2-aminoethanol and stir at ambient temperature. When TLC (silica support; 9:1 CHCl3 :MeOH eluent) shows no starting material, ca. 3 hrs., pour onto ice. Filter, wash (3×15 ml) with cold H2O, and recrystallize from MeOH/IPA. Yield is 4.5 g (66%) of orange crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05042988
Source datasetuspto-grants-1991_08
ORD IDord-677f69249f10496d9c9f6d16bb7bb1ba
Source noteuspto-grants-1991_08