6-Azulyne, the first azulyne to be prepared, has been trapped with furan to give an adduct whose crystal structure reveals marked bond alternation in the azulene π system. The double bond in the furan moiety is responsible in part for the bond localization, as hydrogenation of that bond attenuates the effect. The regiochemistry of electrophilic attack on the adduct has been examined briefly, with results contrary
5,6-Azulyne 是第一个制备的 Azulyne,已被
呋喃捕获,得到一种加合物,其晶体结构显示出在 azulene π 系统中的显着键交替。
呋喃部分中的双键部分负责键的定位,因为该键的
氢化减弱了效果。对加合物的亲电攻击的区域
化学进行了简要检查,结果与前沿轨道理论的预测相反。量子力学计算已经阐明了这些现象。