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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 53519Generated: October 26, 2026

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

https://huagongshe.com/reaction/53519

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 numberUS05620974
Source datasetuspto-grants-1997_04
ORD IDord-347bb4d39b864da4bcaa306b0d10cdd3
Source noteuspto-grants-1997_04