of donor–acceptor cyclopropanes with acetylenes under the effect of anhydrous GaCl3 using 1,2-zwitterion reactivity was elaborated. The reaction opens access to substituted dihydronaphthalenes, naphthalenes, and other fused carbocycles. The direction of the reaction can be efficiently controlled by temperature.
拟订了一种新方法,用于在无
水GaCl 3的作用下使用1,2-两性离子反应性将供体-受体
环丙烷与
乙炔环化[4 + 2] 。该反应打开了进入取代的二氢
萘,
萘和其他稠合碳环的通道。反应的方向可以通过温度有效地控制。