METHOD OF OBTAINING 2-CHLORO-5-CHLOROMETHYLPYRIDINE Russian patent published in 2015 - IPC C07D213/26 C07D213/127 

FIELD: chemistry.

SUBSTANCE: as initial reagent used is 2-chloro-5-hydroxymethylpyridine, and as chlorinating agent - cyanuric chloride, which makes it possible to realise reaction of interaction within 90 minutes in standard conditions and obtain 2-chloro-5-chloromethylpyridine with output not less than 90%. 2-chloro-5-chloromethylpyridine is applied in production of neonicotinoids, in particular imidacloprid, thiacloprid, nitenpyram, widely used in agriculture for fighting pests of grain, fruit and vegetable cultures, in household for elimination of insects in residential and industrial premises.

EFFECT: method improvement.

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