The Synthesis and Properties of Cyclohepta[<i>a</i>]phenalene-6,10-, -6,12-, -7,10-, and -7,12-diones and Their Dicationic and Dianionic Species
作者:Shigeyasu Kuroda、Yoshinobu Kanbata、Yuriko Fukuyama、Syuzi Hirooka、Hideya Takeda、Tomohiko Tsuchida、Yoko Furuki、Takayuki Sumi、Osamu Hanida、Masaki Yamada、Ichiro Shimao
DOI:10.1246/bcsj.64.971
日期:1991.3
The titled new non linear non benzenoid quinone compounds of cyclohepta[a]phenalene-6,10-, -6,12-, -7,10-, and -7,12-diones have been synthesized. The dicationic species formed from quinones by protonation in a strong acid were revealed as diatropic compounds instead of a 16-pi electron system by an examination of spectral measurements, such as the 1H NMR and UV spectra. The stability of these quinones, dicationic species, and dianonic species electrically derived from quinones depends upon the positions of carbonyl groups with both steric and electronic factors.
我们合成了标题为 "环庚[a]芘-6,10-、-6,12-、-7,10-和-7,12-二酮的新型非线性非苯醌化合物"。通过对 1H NMR 和紫外光谱等光谱测量结果的研究发现,醌类化合物在强酸中通过质子化作用形成的二元化合物是二元化合物,而不是 16-pi 电子系统。这些醌类化合物、二阳离子化合物和由醌类化合物电衍生出的二阳离子化合物的稳定性取决于羰基的位置,既有立体因素,也有电子因素。