描述了基于收敛性自由基的氮杂茚满路线,其依赖于各种取代的S-(吡啶甲基)-O-乙基二硫代碳酸酯(黄原酸酯)的退化加成转移至功能性烯烃,然后自由基环化至吡啶环上,所述吡啶环通过用三氟乙酸质子化而活化。在一种情况下,一个富于装饰环庚并[ b ]吡啶,可以迅速地通过允许第一加合物组装Ñ苯基马来经历除了Ñ之前环化-allylphthalimide。
Radical, One-Step Approach to <i>o</i>-Chlorophenyl Thioethers from Xanthates. A Rapid Access to Vinylsilanes
作者:Matthieu Corbet、Zorana Ferjančić、Béatrice Quiclet-Sire、Samir Z. Zard
DOI:10.1021/ol801348u
日期:2008.8.21
Xanthates have been readily converted into o-chlorophenyl thioethers using a one-step procedure conducted under radical conditions. In some selected cases, these aryl thioethers were successfully oxidized to the corresponding sulfoxides and sulfenic acid elimination afforded the corresponding vinylsilanes.