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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 861532Generated: October 30, 2026

Beta-Alanine → 3-{[2-Nitro-4-(trifluoromethyl)phenyl]amino}propanoic acid

https://huagongshe.com/reaction/861532

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBeta-AlanineHCID 239—
ReactantHydrochloric AcidHCID 313—
Reactant4-Chloro-alpha,alpha,alpha-trifluoro-3-nitrotolueneHCID 8462—
ReactantPotassium CarbonateHCID 11430—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Product3-{[2-Nitro-4-(trifluoromethyl)phenyl]amino}propanoic acidHCID 276434499%

Reaction Steps

60 g (0.27 mol) of 2-chloro-1-nitro-5-trifluoromethylbenzene, 50 g (0.56 mol) of β-alanine and 41 g (0.3 mol) of potassium carbonate were refluxed in a mixture of 300 ml of dimethylformamide and 50 ml of water for 6 h. The mixture was then poured into ice-water, the aqueous phase was acidified with hydrochloric acid, and the precipitate was filtered off with suction to yield 73 g (99%) of the product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05714489
Source datasetuspto-grants-1998_02
ORD IDord-a89e95c159c44713b80e3f6faa196e3b
Source noteuspto-grants-1998_02