6008-55-5Relevant articles and documents
A novel synthesis of cyclic polythioethers using liquid-liquid phase-transfer catalysis
Takido, Toshio,Toriyama, Masaharu,Ogura, Kazuhiro,Kamijo, Haruo,Motohashi, Shigeyasu,Seno, Manabu
, p. 1295 - 1301 (2007/10/03)
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 using phase-transfer catalyst without the use of dithiols, and have examined the ion recognition of these compounds.
Formation of sulfur-centered cation radicals by photofragmentation
Glass,Broeker,Anklam,Asmus
, p. 1721 - 1724 (2007/10/02)
The selected dialkyl dithioethers 1,5-dithiocane, 1,4-dithiepane, 1,4-dithiane, and 2,6-dithiaheptane are readily monoalkylated in nitromethane by tert-butyl 0-trifluoromethanesulfonyl-3-hydroxyperoxypropanoate 6, to give the corresponding sulfonium salt peresters 2a-c, and 3 in good yield. Laser flash photolysis of these compounds affords the known two-sulfur, three-electron stabilized cation radicals 2a, b, and 5 which were characterized by optical absorption spectroscopy.
