Title: Prepn. of rat-killing phosphoric poison bait and its series
Application Number: 89104592 Application Date: 1989.07.04
Publication Number: 1038815 Publication Date: 1990.01.17
Approval Pub. Date: Granted Pub. Date: 1992.11.25
International Classifi-cation: A01N57/30,C07F9/18
Applicant(s) Name: Liaoning Prov. Chemical Industry Inst. Address:
Inventor(s) Name: Dong Zhijun, Su Qiang
Attorney & Agent: JIA HANSHENG
Abstract:
     This invention refers to a method of preparation of rat-killing phosphoric poison bait and its series products. The alkali solution is either added at the stage of preparation of intermidiate of 0,0-di (halogen phenyl) sulfuryl phosphorus oxycbloride or at the stage when phase transfer catalyst is introduced, or the alkali solution is added directly, way makes the reaction go on quickly. The synthesis is conducted in the same equipment without separation of reaction mixtures of intermidiates. This invention is superior to current process in following points: it is more economical and convenient than original process which uses anbydrous tri-acetamiue.
Time: 3