描述了从独特的联萘分子平台开始制备苯并环庚酮。联萘乙酸证明是稠合环庚酮结构的合适前体。嵌入联萘单元的七元环是通过使用伊顿试剂选择性生成的。也可以在不同的酸性条件下获得前体中第二反应位点的亲电环化过程产生的异构螺旋结构。多个量子核磁共振序列提供了异构几何结构之间的明确区分。进行了 DFT 计算并给出了底物对分子内亲电取代的不同行为的证据。理论方法证实了实验结果,与 X 射线数据完全一致。
Binaphthyl platform as starting materials for the preparation of electron rich benzo[g,h,i]perylenes. Application to molecular architectures based on amino benzo[g,h,i]perylenes and carborane combinations
Synthesis of α,α-diaryl nitriles by radical nucleophilic substitution
作者:Tomas C. Tempesti、Adriana B. Pierini、Maria T. Baumgartner
DOI:10.1039/c1nj20699k
日期:——
study shows that the anion of 2-naphthylacetonitrile is substituted selectively at its Cα by aromatic halides, through a radical nucleophilicsubstitution mechanism, to give the corresponding α,α-diaryl nitriles in good yields. The regioselectivity of this ambidentnucleophile changes with the steric hindrance at the radical centre from the aromatic substrate. The selectivity observed was investigated