benzyl group is more electron-donating and as that in the benzeno bridge which bears the 1-methyl group is more electron-withdrawing. The results are interpreted as indicating the presence of CH3···π interactions.
通过 1 H NMR 光谱检查取代的 9-苄基-8,13-二
氯-1-甲基
三烯衍
生物中的总体比率±sc/ap 表明,随着苄基中的取代基更多地提供电子和因为带有1-甲基的苯桥更吸电子。结果被解释为表明存在
CH3...π 相互作用。