Organic Pesticides. Part VIII. Synthesis of Halo-aryl Esters of Phosphoric and Thiophosphoric Acids and Certain Related Com.pounds

 Seven substituted fluorophenols have been condensed with \(O:O\)-diethyl chlorothiophosphate to give esters of thiophosphoric acid, with phosphorous oxychloride to give phosphoric acid esters, and finally with ethylene chlorohydrin to yield the corresponding ethers. All these compounds are expected to possess insecti­cidal activity.