The treatment of [2.2]metacyclophanes with aluminum chloride gave a variety of hydropyrenes as the results of dehydrogenation, cycloisomerization, and disproportionation reactions. With ethylaluminum dichloride, however, a highly selective reaction occurred to give trans-trans-1,2,3,3a,4,5,9,10,10a,10b-decahydropyrene. Revised structures were presented for cis-cis- and trans-trans-decahydropyrenes
作为脱氢、环异构化和歧化反应的结果,用氯化铝处理 [2.2] 间环芳烃会产生多种氢芘。然而,使用二氯化乙基铝时,发生了高度选择性的反应,生成反式-反式-1,2,3,3a,4,5,9,10,10a,10b-十氢芘。基于 13 C NMR 和 X 射线晶体学分析,提出了针对顺-顺-和反-反-十氢芘的修订结构。
Medium-sized cyclophanes—XVII
作者:K. Nishiyama、K. Hata、T. Sato
DOI:10.1016/0040-4020(75)85073-3
日期:1975.1
[2.2]Metacyclophane (1) undergoes a variety of reactions according to the reagents and conditions. These include (1) substitution (path a), (2) transannular dehydrogenation (path b and c), (3) cycloisomerization (path d) and (4) transannular hydrogenation. A brief summary of these reactions is presented.