Synthesis and Biological Activity of Novel Phosphonate Derivatives Containing of Pyridyl and 1,2,3-Triazole Rings

Abstract

In order to search for novel agrochemicals with high activity and low toxicity, a series of phosphonate derivatives containing 1,2,3-triazolyl and pyridyl rings were synthesized using 2-chloro-5-(chloromethyl)-pyridine as the starting material. IR, 1 H NMR, 31P NMR, MS, and elemental analyses confirmed their structures. The crystal structure of 5a was determined by single crystal X-ray diffraction. Preliminary bioassays indicated that some of them possess good herbicidal and moderate fungicidal activities.