作者:Katsumi Yonemoto、Isao Shibuya、Yoichi Taguchi、Tohru Tsuchiya、Masahiko Yasumoto
DOI:10.1246/bcsj.65.920
日期:1992.3
ethanesulfenamides (R2NCSSNHCOR′ 3: R = alkyl, R′ = alkyl, dialkylamino, alkoxy, and heterocyclic substituent) were treated with a strong acid (HBF4 or HClO4) in Ac2O to afford 1,4,2,-dithiazolium salts (7) and/or 3,5-bis(dialkyliminio)-1,2,4-trithiolanes (9). The reactivity is markedly dependent on the nature of substituents (NR2 and R′) and the acid used. For R′ = MeO, the sulfenamides reacted successively
N-(取代的甲酰基)二烷基氨基(硫代)甲磺酰胺(R2NCSSNHCOR' 3:R = 烷基,R' = 烷基、二烷基氨基、烷氧基和杂环取代基)在 Ac2O 中用强酸(HBF4 或 HClO4)处理,得到 1, 4,2,-二噻唑鎓盐(7)和/或3,5-双(二烷基亚氨基)-1,2,4-三硫杂环戊烷(9)。反应性明显取决于取代基(NR2 和 R')的性质和所用的酸。对于 R' = MeO,次磺酰胺依次与 NaH 和对甲苯磺酰氯反应,得到双(二烷基硫代氨基甲酰硫基)氨基甲酸甲酯 (10)。讨论了 9 和 10 的形成机制。