215655-75-7Relevant academic research and scientific papers
Synthesis and herbicidal activities of methyl-1-(2,4- dichlorophenoxyacetoxy)alkylphosphonate monosalts
He, Hong Wu,Wang, Tao,Yuan, Jun Lin
, p. 2608 - 2613 (2007/10/03)
A series of 1-(2,4-dichlorophenoxyacetoxy)alkylphosphonic acid dimethyl esters 5 and its corresponding phosphonate monosalts 6 were synthesized as potential herbicide. The phosphonate monosalts can be prepared from 1-(2,4-dichlorophenoxyacetoxy)alkylphosphonic acid dimethyl esters 5, which were synthesized by the condensation of O,O-dimethyl-1-hydroxyalkylphosphonates with dichlorophenoxyacetic chloride. This method provides a simple and efficient procedure for the synthesis of phosphonate derivatives containing sensitive groups to acid, base or water such as carboxylate ester bond; and the herbicidal activity of title compounds was evaluated in a set of experiments in greenhouse. Most of the compounds exhibited notable herbicidal activity.
Simple and improved preparation of α-oxophosphonate monolithium salts
Wang, Tao,Hong, Wu He
, p. 2081 - 2089 (2007/10/03)
Some α-OxoPhosphonate monolithium salts were synthesized by a facile one-step procedure. In this way, α-(2,4-dichlorophenoxyacetoxy)alkyl phosphonic acid dimethyl esters 5 can be transformed into the corresponding phosophonate monolithium salts 6 without influence on the carboxylic ester group under mild conditions.
Synthesis and dealkylation of 1 -(dichloro-phenoxyacetoxy) alkyl phosphonates
He, Hongwu,Liu, Xufeng,Hu, Liming,Wang, Siquan,Liu, Zhaojie
, p. 633 - 636 (2007/10/03)
Using the silylation procedure with chlorotrimethylsilane/sodium iodide followed by alcoholysis, 1-(dichlorophenoxy acetoxy)alkyl phosphonic acid dimethyl esters can be transformed into the parent phosphonic acids without influence on carboxylate ester group.
