On nitration and halogenation cyclotriveratrylene did not give nuclear substituted derivatives but gave ring cleavage products in which a veratryl group was replaced by an electrophile. The cleavage reaction was shown to occur in a stepwise manner. Under controlled conditions o-dibenzylbenzenes such as (III)—(V), (X)—(XIII), and (XVI) were obtained in high yield and were further cleaved to diphenylmethane
在硝化和卤化反应中,环三碳杂
戊二烯不产生核取代的衍
生物,但给出了环裂解产物,其中的藜芦基被亲电试剂取代。裂解反应显示为逐步发生。在受控条件下,以高收率获得邻二苄基苯,如(III)-(V),(X)-(XIII)和(XVI),并进一步裂解为二苯
甲烷衍
生物[(VI)和(XIV)]和veratrole衍
生物[(VII),(VIII)和4,5-二
溴戊酰胺]。切割变得容易,因为有(a)中的高电子密度对位到甲氧基组电攻击和藜芦阳离子作为好的离去基团(b)的稳定化。三苯并环
壬烯环系统不是内在地负责断裂。