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辛硫磷中二肟甲烷杂质的分离与鉴定
Isolation and Identification of Bis (Phenylglyoxylonitrile Oximino) Methane as an Impurity from Phoxim
【摘要】 用苯乙腈肟钠与氟化硫代磷酸二乙酯反应,以CH2Cl2-H2O为溶剂、TEBA为相转移催化剂合成了辛硫磷。从辛硫磷粗品公分得一白色结晶,经元素分析、IR、NMR及MS测定,确证其结构为双(苯乙腈肟)甲烷。
【Abstract】 Bis(phenylglyoxylonitrile oximino) methane(Ⅳ) was isolated from phoxim (Ⅰ) , which prepared by treating phenyl glyoxylonitrile oxime sodium salt(Ⅱ) with diethylphosphorochloridothionate(Ⅲ) in the solution of CH2Cl2-H2O with TEBA as phase transfer catalyst. The chemical structure of Ⅳ was confirmed by elementary analysis, IR, NMR and MS.
【关键词】 双(苯乙腈肟)甲烷;
辛硫磷;
相转移催化;
【Key words】 bis(phenylglyoxylonitrile oximino) methane; phoxim; phase transfer catalysis.;
【Key words】 bis(phenylglyoxylonitrile oximino) methane; phoxim; phase transfer catalysis.;
- 【文献出处】 农药 ,PESTICIDES , 编辑部邮箱 ,1996年04期
- 【分类号】O622.1
- 【被引频次】2
- 【下载频次】59