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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 273362Generated: October 31, 2026

Ethanolamine → HC Yellow no. 13

https://huagongshe.com/reaction/273362

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolamineHCID 700—
Reactant4-Fluoro-3-nitrobenzotrifluorideHCID 67778—
SolventTetrahydrofuranHCID 8028—
ProductHC Yellow no. 13HCID 279915780%

Reaction Steps

To a stirred solution of 2-aminoethanol (5 ml, 150 mmol) in THF (20 ml), 1-fluoro-2-nitro-4-(trifluoromethyl)benzene (6.9 ml, 50 mmol) was added slowly at 0° C. After the completion of the addition, the reaction mixture was stirred at RT for 24 hrs. THF was evaporated using a rotary evaporator and the residue was extracted using water and ethyl acetate. Ethyl acetate was washed with more water, dried and evaporated to give crystalline 2-aminoethanol derivative (10.0 g, 80%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07456293B2
Source datasetuspto-grants-2008_11
ORD IDord-d22f97bcb5f74a9683f0c90a18a38335
Source noteuspto-grants-2008_11