8-叔丁基-6 b 2 -氮杂五苯并[ bc , ef , hi , kl , no ]corannulene (1) 和 C 60之间形成一种新型的 2 : 1 主-客体复合物,具有正协同性 ( α = 2.56)和高亲和力(K 1 × K 2 = 2.8 × 10 6 M -2)在25°C。在整个结合过程中,C 60的形状互补性向 1 增加。
Benzene-Fused Azacorannulene Bearing an Internal Nitrogen Atom
作者:Shingo Ito、Yuki Tokimaru、Kyoko Nozaki
DOI:10.1002/anie.201502599
日期:2015.6.15
A novel nitrogen‐doped corannulene derivative, 8‐tert‐butyl‐6b2‐azapentabenzo[bc,ef,hi,kl,no]corannulene, was synthesized by 1,3‐dipolar cycloaddition of a polycyclic aromatic azomethine ylide with a diarylethyne and subsequent palladium‐catalyzed intramolecular cyclization. This molecule represents the first example of a corannulene derivative bearing an internal heteroatom, and exhibits unique structural
Functionalization of Azapentabenzocorannulenes by Fivefold C−H Borylation and Cross‐Coupling Arylation: Application to Columnar Liquid‐Crystalline Materials
one‐shot fivefoldfunctionalization of azapentabenzocorannulenes by an iridium‐catalyzed fivefoldC−Hborylation reaction that exhibits excellent regioselectivity is reported. The borylated product can be used as a versatile synthetic intermediate for further derivatization via Suzuki–Miyaura cross‐coupling reactions. This fivefoldborylation/arylation sequence was employed to synthesize liquid‐crystalline