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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 42041Generated: October 25, 2026

2-Chloro-5-nitro-3-(trifluoromethyl)pyridine → 6-Chloro-5-(trifluoromethyl)pyridin-3-amine

https://huagongshe.com/reaction/42041

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Chloro-5-nitro-3-(trifluoromethyl)pyridineHCID 3849140—
CatalystZinc bromideHCID 10421208—
SolventEthyl AcetateHCID 8857—
Product6-Chloro-5-(trifluoromethyl)pyridin-3-amineHCID 1353224492.1%

Reaction Steps

A mixture of 2-chloro-5-nitro-3-(trifluoromethyl)pyridine (5.25 mmol, 1.19 g), ZnBr2 (1.05 mmol, 0.200 g) and 5% Pt © (1.58 mmol, 0.31 g) in ethyl acetate (50 ml) was stirred for 20 hours under hydrogen atmosphere. The catalyst was filtered off and the solid was washed with warmed ethanol. The solvent was evaporated affording the expected product (0.95 g, yield 92%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08536165B2
Source datasetuspto-grants-2013_09
ORD IDord-b481c66872354ee5870e85cbf0e7fd28
Source noteuspto-grants-2013_09