Characterization and stability of cyclic disulfides and cyclic dimeric bis(disulfides)
作者:Janette Houk、George M. Whitesides
DOI:10.1016/0040-4020(89)80036-5
日期:1989.1
preparation of cyclic bis(disulfide) diners derived from -2-butene-1,4-dithiol and -1,2-cyclohexane dithiol and the cyclic tris(disulfide) dimer of 1,3,5-tris(mercaptomethyl)benzene by high dilution oxidation of the thiols with iodine. The stability toward ring-opening polymerization of these three new cyclic disulfides and of nine previously reported cyclic disulfides was tested by heating the disulfide with
本文介绍了由-2-丁烯-1,4-二硫醇和-1,2-环己烷二硫醇衍生的环状双(二硫)二聚物和1,3,5-三(巯基甲基)的环状三(二硫)二聚体的制备碘通过高稀释度氧化硫醇而制得的苯。通过将二硫化物与催化量的甲硫醇钠一起加热,测试了这三种新的环状二硫化物和九种先前报道的环状二硫化物对开环聚合的稳定性。在这些条件下,环状双(二硫化物)对于聚合均没有稳定。这些实验的结果以及有关类似二硫化物稳定性的文献报道表明,几乎没有简单的烷基二硫化物以循环形式热力学稳定。