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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1159447Generated: October 26, 2026

3,5-Dichloroisonicotinamide → 3,5-Dichloropyridine-4-carbonitrile

https://huagongshe.com/reaction/1159447

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3,5-DichloroisonicotinamideHCID 2802911—
SolventPhosphorus oxychlorideHCID 24813—
Product3,5-Dichloropyridine-4-carbonitrileHCID 1113759963.1%

Reaction Steps

The product from Example 1A (2.1 g, 11 mmol) in POCl3 (25 mL) was stirred at reflux overnight, allowed to cool to room temperature, poured onto ice, and extracted with ethyl acetate. The organic extract was dried (Na2SO4), filtered, and the filtrate was concentrated under reduced pressure to give 1.2 g of the title compound. 1H NMR (300 MHz, DMSO-D6) δ ppm 8.96 (s, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07812166B2
Source datasetuspto-grants-2010_10
ORD IDord-57e03497db9745c59d3bd42fbe774909
Source noteuspto-grants-2010_10