Herbicide suspending agent containing pentoxazone and amidosulfuron

Abstract

The invention relates to a herbicide suspending agent containing pentoxazone and amidosulfuron. According to the herbicide disclosed by the invention, effective active ingredients, namely pentoxazone and amidosulfuron, are mixed with each other, so that the herbicide controlling spectrum is broad; the effective ingredients of the herbicide disclosed by the invention have a very good synergistic effect when the effective ingredients are matched in a certain range, the control effect is higher than that of single preparations, and the medicine property duration is long; the herbicide is extremely safe to cereal crops.

Description

technical field

[0001] The invention belongs to the field of pesticides, in particular to a herbicide suspension containing cyclopentazone and rimsulfuron-methyl. Background technique

[0002] Cyclopentazone, chemical name 3-(4-Chloro-5-cyclopentyloxy-2-fluorophenyl)-5-isopropylene-1,3-oxazoline-2,4-dione , the structural formula , belonging to oxazolones, the pure product is a colorless, odorless powdery solid; melting point 104°C; density 1.418 (25°C); vapor pressure <1.11×10-5Pa (25°C). Partition coefficient LogP=0.67; solubility in water is 0.216 mg / l (25°C); stable to light, heat and acid, unstable to alkali. It is mainly used to control barnyard grass and annual weeds. Using p-fluorophenol as the starting material, through chlorination, esterification and nitration to obtain intermediate substituted nitrobenzene; through hydrolysis to obtain intermediate substituted phenol potassium salt; and then through etherification and reduction to obtain substituted anilin...