Benzethonium phenoxyacetates, method for obtaining them and their application as herbicides

摘要

the subject of zgu0142oszeni8a are fenoksyoctany benzetoniowe, how they receive and use as herbicides. ammonium ion liquids with kationem benzetoniowym have the general formula 1, where a is anion dichlorofenoksyoctanowy 2,4 - or 4 - chloro - 2 - metylofenoksyoctanowy of general formula 2.the way they receive is that quaternary benzethonium chloride of general formula 3 undergo exchange reaction with lithium or sodium nitrate salt,, or potasowu0105 acid, 2,4 - dichlorofenoksyoctanowego or 4 - chloro - 2 - metylofenoksyoctanowego, mole ratio of quaternary salt 's to acid salts from 1: 0.9 to 1: 1.1, preferably 1: 1, at a temperature of at least 20u00b0c,in aqueous or organic solvent of methanol ethanol, propanol, isopropanol, and the reaction product is secreted from the aqueous biphasic extraction layer technique with organic solvent of chloroform or ethyl acetate,: in turn separates phase organisations cznu0105, solvent is removed.the reaction mixture of vaporized solvent and the organic solvent with acetone or acetonitrile, or group: methanol, or ethanol, or isopropanol, then organic solvent is formed odsu0105cza inorganic by-product in a temperature - 20u00b0c favourably with the filtrate vaporized solvent, and the reaction product of drought.