Electronic structure and kinetic behavior of 4-(cycloheptatrienylidene)cyclohexa-2,5-dienone (or [6.7]Quinaren-9-one) and its derivatives)
作者:Kazuko Takahashi、Tetsuo Nozoe、Kahei Takase、Toshiaki Kudo
DOI:10.1016/s0040-4039(01)91152-9
日期:1984.1
The conjugative interaction between the two terminal groups in title quinarenone 2 and its chloro- and methoxy-derivatives were evaluated, proving that the diatropicity of the seven-membered ring is a little larger in 2 than in tropone. Some of these quinarenones are also found to exist in equilibrium with their oligomers and show unexpectedly low barriers of rotation about the intercyclic bond.
对标题喹啉酮2中两个末端基团及其氯代和甲氧基衍生物之间的共轭相互作用进行了评估,证明七元环的变径性在2中比对苯二酚中的稍大。还发现这些喹啉酮中的一些与它们的低聚物平衡存在,并且显示出围绕环间键的出乎意料的低旋转势垒。