The reactions of the stable S-methylepisutfonium ions derived from cis-cyclooctene with various nucleophiles were found to proceed mainly as the attack at a C atom of episulfonium ring in contrast to the previous data of Helmkamp et al.4 The course of the RSCI AdE-reaction with cyclooctene under the conditions of increased polarity corresponded to the formation of intermediates closely related to episulfonium
与Helmkamp等人先前的数据相反,发现顺式-环
辛烯衍生的稳定的S-甲基表
氟鎓离子与各种亲核试剂的反应主要是由于对epi环的C原子的攻击而进行的。4在极性增加的条件下,RSCI Ad E与环
辛烯的反应过程与形成与epi
硫离子密切相关的中间体相对应。观察到2,4-
二硝基苯并二烯
硫基烯衍
生物与顺式-环
辛烯的反应发生了环1,5-
氢化物移位。