An Efficient Synthesis of α‐(2,4‐Dichloro‐phenoxyacetoxy)aryl Methyl Phosphonate Monosodium Salts
作者:Tao Wang、Hong Wu He
DOI:10.1081/scc-120030691
日期:2004.12.31
Abstract A series of α‐(2,4‐dichlorophenoxyacetoxy)aryl methyl phosphonate monosodium salts 6 were synthesized by the reaction of the intermediate 5 with sodium iodide under moderate condition. This method was applied to the synthesis of novel phosphonate derivatives containing sensitive groups such as carboxylic ester to acid, base, or water.
Synthesis and Dealkylation of 1-(Dichloro-Phenoxyacetoxy)Alkyl Phosphonates
作者:Hongwu He、Xufeng Liu、Liming Hu、Siquan Wang、Zhaojie Liu
DOI:10.1080/10426509908546324
日期:1999.1.1
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 estergroup.
SIMPLE AND IMPROVED PREPARATION OF α-OXOPHOSPHONATE MONOLITHIUM SALTS
作者:Tao Wang、Hong Wu He
DOI:10.1080/10426500490474941
日期:2004.10.1
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.