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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2380233Generated: October 30, 2026

Pyridine → 2-Chloro-N-(2-chloro-4-methyl-3-pyridinyl)-3-pyridinecarboxamide

https://huagongshe.com/reaction/2380233

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantCyclohexaneHCID 8078—
Reactant3-Amino-2-chloro-4-methylpyridineHCID 2756387—
Reactant2-Chloronicotinoyl chlorideHCID 2774541—
Solvent1,4-DioxaneHCID 31275—
Product2-Chloro-N-(2-chloro-4-methyl-3-pyridinyl)-3-pyridinecarboxamideHCID 104238684.7%

Reaction Steps

Using a procedure analogous to that described in Example 1a, the carboxamide was prepared from 12.8 g of 3-amino-2-chloro-4-methyl pyridine, 15.8 g of 2-chloronicotinoyl chloride, 7.1 g of pyridine, 30 ml of cyclohexane and 60 ml of dioxane. After removal of the solvent, the product was dissolved in methylene chloride, washed with water and dried (sodium sulfate). After removal of the solvent, the residue was washed with ethyl acetate to give 1.2 g of the title compound, m.p. 193°-194° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05366972
Source datasetuspto-grants-1994_11
ORD IDord-583b49c380194ee4b4288195ccfa1a23
Source noteuspto-grants-1994_11