o‐quinodimethane was investigated. Sterically congested substituents or electron‐donating substituents on the four‐membered ring promoted the ring‐opening, affording o‐quinodimethane in a relatively stable form. Isolation of the newly prepared o‐quinodimethane allowed its structural elucidation and investigation of its potential reactivities. Dual [4+2] cycloaddition of an aryne and o‐quinodimethane
                                    研究了环丁
菲向邻
喹啉甲烷的热异构化。四元环上的立体拥挤的取代基或给电子的取代基促进了开环,从而提供了相对稳定的邻
喹啉甲烷。对新制备的邻
喹啉甲烷的分离可对其结构进行阐明,并对其潜在的反应性进行研究。亚芳基和邻喹二
甲烷的双[4 + 2]环加成反应得到四苯并五并苯,证明了该分离化合物的合成应用。