A highly regio- and stereoselective method, comprising a cuprous iodide-catalysed cyclisation as a key step, gives an easy access to (E)-2-(2-arylvinyl)-3,1-benzoxathiin-4-ones 16-22.
通过
碘化亚铜催化环化作为关键步骤的高区域和立体选择性方法,可以轻松获得 (E)-2-(2-芳基
乙烯基)-3,1-
苯并恶嗪-4-
酮 16-22。