thioureas via a formal π-insertion into the C═S bond. The reaction contrasts with that of ureas, which proceeds via benzyne σ-insertion into the C–N bond, and represents a new, operationally simple route to functionalized amidines.
由三甲基甲
硅烷基苯基
三氟甲磺酸酯前体生成的
芳烃已通过与π插入C═S键的形式与
硫脲反应。该反应与
尿素的反应形成对比,后者是通过将
苯乙炔σ插入C–N键进行的,代表了一条新的,操作简单的途径来官能化am。