申请人:ROHM AND HAAS COMPANY
公开号:EP0375265A2
公开(公告)日:1990-06-27
A process for obtaining pure 2-substituted-3(2H)-isothiazolones is presented, wherein the substituent is alkyl, linear or branched. By developing suitable conditions, the isothiazolone hydrochloride is isolated from the complex reaction media wherein it is formed as readily filterable crystals of high purity. Such purified crystals are then utilized in isolation of isothiazolone of high purity.
本发明提出了一种获得纯净的 2-取代-3(2H)-异噻唑酮的工艺,其中取代基为直链或支链烷基。通过开发合适的条件,异噻唑酮盐酸盐可从复杂的反应介质中分离出来,形成高纯度的易过滤晶体。这种纯化晶体可用于分离高纯度的异噻唑啉酮。