A Novel Synthesis of Cyclic Polythioethers Using Liquid-Liquid Phase-Transfer Catalysis
作者:Toshio Takido、Masaharu Toriyama、Kazuhiro Ogura、Haruo Kamijo、Shigeyasu Motohashi、Manabu Seno
DOI:10.1080/10426500307887
日期:2003.6
The synthesis of cyclic polythioethers has been achieved by the reactions of dithiols with alkyl dihalides. Thiols are not only hard to handle owing to their unpleasant smell, but also they are easily oxidizable, thus it is not easy to obtain various dithiols. However, we have developed a procedure for the preparation cyclic polythioethers by the reaction of dithioiminium salts with alkyl dihalides
环状聚硫醚的合成是通过二硫醇与烷基二卤化物的反应来实现的。硫醇不仅气味难闻,难以处理,而且易氧化,不易得到各种二硫醇。然而,我们开发了一种通过二硫亚胺盐与烷基二卤化物在不使用二硫醇的情况下使用相转移催化剂反应来制备环状聚硫醚的方法,并研究了这些化合物的离子识别。