Thermal aza-Bergman cyclization of o-alkynylaryl isocyanides has been achieved in the presence of organic dichalcogenides. The reactions can be induced upon heating at 40 °C to afford the corresponding 2,4-dichalcogenated quinolines. In addition, similar conditions can be also employed with iodine to form 2,4-diiodoquinolines.
邻炔基芳基异
氰化物的热氮杂伯格曼环化已在有机二
硫属化物存在下实现。在 40°C 加热时可以引发反应,得到相应的 2,4-二
硫代
喹啉。此外,类似的条件也可以用
碘来形成2,4-二
碘喹啉。