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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 42657Generated: October 28, 2026

HCID 86628083, compound → 5-(3,4-Dimethoxy-5-nitrophenyl)-3-(2-(trifluoromethyl)pyridin-3-yl)-1,2,4-triazine

https://huagongshe.com/reaction/42657

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 86628083HCID 86628083—
ReactantN'-amino-2-(trifluoromethyl)pyridine-3-carboximidamideHCID 87543466—
SolventEthanolHCID 702—
Product5-(3,4-Dimethoxy-5-nitrophenyl)-3-(2-(trifluoromethyl)pyridin-3-yl)-1,2,4-triazineHCID 68701881—

Reaction Steps

To a stirred solution of (Z)-2-(trifluoromethyl)nicotinohydrazonamide (1.02 g, 5 mmol) in ethanol (30 mL) was added 2-(3,4-dimethoxy-5-nitrophenyl)-2-oxoacetaldehyde (1.19 g, 5 mmol). The reaction mixture was heated to reflux for 5 hours. It was then cooled to room temperature and the solvent was removed by evaporation. The residue was dissolved in dichloromethane (30 mL) and the organic phase was washed with water and dried over anhydrous magnesium sulphate, filtered and evaporated. The crude product was recrystallized from isopropanol to give 5-(3,4-dimethoxy-5-nitrophenyl)-3-(2-(trifluoromethyl)pyridin-3-yl)-1,2,4-triazine, 1.628 g (80%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08536203B2
Source datasetuspto-grants-2013_09
ORD IDord-69bb41e3d1e54a1b9ebe116feed77f24
Source noteuspto-grants-2013_09