The addition of phenyllithium to a polycyclic quinone, 9,11,12,21,22,24‐hexaphenyltetrabenzo[a,c,n,p]hexacene‐10,23‐dione (10), followed by SnCl2‐mediated reduction of the diol intermediate, yielded 9,10,11,12,21,22,23,24‐octaphenyltetrabenzo‐[a,c,n,p]hexacene (4). Crystallographic analysis of hexacene 4 showed it to possess a longitudinal twist of 184°, which was in good agreement with AM1 calculations
在多环醌9,11,12,21,22,24-六苯基四苯并[ a,c,n,p ]己烯10,23-二酮(10)中添加
苯基锂,然后用SnCl 2介导还原二醇中间体,生成9,10,11,12,21,22,23,24-八苯基四苯并[ a,c,n,p ]
己二烯(4)。己烯4的晶体学分析表明,它具有184°的纵向扭曲,这与
AM1的计算非常吻合。化合物4除了是到目前为止合成的最扭曲的并苯 在其子结构中包含最扭曲的
萘,
蒽,
并四苯和
并五苯部分。