Synthesis of 4- and 5-benzothiazol-2-yldithio-2,6-dimethylocta-2,6-diene and other models for pendent groups in the sulphur vulcanisation of natural rubber
作者:Norman J. Morrison
DOI:10.1039/p19840000101
日期:——
thioacetates afforded the thiols (16c) and (18c), which were converted into the title disulphides (21) and (22) by treatment with N-(benzothiazol-2-ylthio)phthalimide. Monosulphidic and other disulphidic model pendent groups were prepared by nucleophilic displacement reactions of the benzothiazole-2-thiolate anion with the appropriate chloro compound or Bunte salt, respectively.
2,6-和3,7-二甲基辛基-2,6-二烯-4-醇(14)和(15)与硫代乙酸和偶氮二羧酸二异丙酯-三苯基膦反应,除其他以外,得到硫代乙酸酯(16b)和(18b)。还原硫代乙酸盐得到硫醇(16c)和(18c),通过用N-(苯并噻唑-2-基硫基)邻苯二甲酰亚胺处理将其转化为标题二硫化物(21)和(22)。通过分别使苯并噻唑-2-硫代硫酸根阴离子与适当的氯代化合物或邦特盐进行亲核取代反应,制备单硫基和其他二硫基模型侧基。