Wittig olefination and thiol mediated 7-endo-trig radical cyclization: novel synthesis of oxepin derivatives
作者:K.C. Majumdar、Abu Taher
DOI:10.1016/j.tetlet.2008.10.134
日期:2009.1
Thiophenol-mediated 7-endo radical cyclization for the synthesis of seven-membered cyclic ethers is described. This method can be successfully applied to synthesize various benzoxepin derivatives, which are present in many natural products as building blocks. Alkenyl radicals are generated from easily available terminal alkynes and thiophenol.
描述了用于合成七元环醚的硫酚介导的7-内基自由基环化。该方法可以成功地用于合成各种苯并二甲苯衍生物,这些苯并二甲苯衍生物作为许多组成部分存在于许多天然产物中。烯基自由基是由容易获得的末端炔烃和苯硫酚生成的。