摘要
4-氯苯酐在二甲基亚砜中与二硫化碳,硫磺及叔丁醇钠反应得到中间体;之后与过硫酸钾在硝酸铈铵及四丁基碘化铵催化下乙腈/水中反应,得到3,3',4,4'-二苯基砜四羧酸二酸酐。该方法具有原材料易于购买,溶剂可回收套用,后处理操作简单,收率高等优点。
4-chlorobenzene anhydride react with carbon disulfide,sulfur and sodium tert-butoxide in dimethyl sulfoxide to get intermediate;then react with potassium persulfate at ceric ammonium nitrate and tetrabutylammonium iodide in acetonitrile and water to get 3,3',4,4'-diphenylsulfonetetracarboxylic dianhydride.The method has the following advantages:the raw materials are easy to be purchased,the reaction solvent is recyclable,the post-treatment operation is simple,the yield is high,etc.
作者
张文
Zhang Wen(Tianjin Junkai Chemical Co.,Ltd.,Tianjin 300384,China)
出处
《山东化工》
CAS
2018年第7期35-35,38,共2页
Shandong Chemical Industry
