| abstract |
The invention relates to a novel acylhydrazone compound containing a pyridine ring, that is, a 3-chloro-2-hydrazinopyridine derivative, a preparation method and application thereof. It reacts 2,3-dichloropyridine with hydrazine hydrate to produce 3-chloro-2-hydrazinopyridine, and reacts 3-chloro-2-hydrazinopyridine with aldehyde to produce 3-chloro-2 -hydrazinopyridine derivatives. The preparation method is simple and the operation is convenient, and the obtained compound shows good inhibitory effect on tomato bacterial spot at a concentration of 100 μg/ml, and the inhibition rate is as high as 82.54%, and shows good inhibitory effect on cucumber Fusarium wilt , the inhibition rate is as high as 71.11%; the compound of the present invention is a new compound with fungicidal activity, which provides a basis for the research and development of new pesticides. |