Oxidative Cleavage of Diselenide by<i>m</i>-Nitrobenzenesulfonyl Peroxide. Novel Method for the Electrophilic Benzeneselenenylations of Olefins and Aromatic Rings
作者:Masato Yoshida、Shuichi Sasage、Kyoko Kawamura、Takashi Suzuki、Nobumasa Kamigata
DOI:10.1246/bcsj.64.416
日期:1991.2
acetic acid, phenol, and anisole could be employed; oxyselenenylated ((Remark: Graphics omitted.) : R=H, Me, Ac, and Ph) and arylselenenylated ((Remark: Graphics omitted.) : R=H and Me) adducts were afforded. Phenol gave oxyselenenylated products in cyclohexene or 1-octene and arylselenenylated products in styrene. Efficient intramolecular cyclizations of unsaturated alcohols and carboxylic acids were
发现二苯基二硒化物通过用间硝基苯磺酰过氧化物处理很容易转化为间硝基苯磺酸苯硒基酯 (PhSeOSO2C6H4NO2-m)。当如此形成的硒基磺酸盐在各种亲核试剂的存在下与烯烃如环己烯、1-辛烯或苯乙烯原位反应时,得到苯硒基基团和亲核试剂的加合物。亲核试剂水、甲醇、乙酸、苯酚和苯甲醚均可使用;得到氧硒烯化((备注:省略图示。):R=H、Me、Ac 和 Ph)和芳基硒酰化((备注:图示省略。):R=H 和 Me)加合物。苯酚在环己烯或 1-辛烯中生成氧化硒化产物,在苯乙烯中生成芳基硒化产物。不饱和醇和羧酸的有效分子内环化同样通过磺酸硒进行,得到相应的苯硒化环醚和内酯。硒基磺酸盐也被发现是一种高...