compound in which two perylene subunits fused to 1,1′-binaphthyl scaffold—has been synthesized from 1,8-dibromophenanthrene using an anionic cyclodehydrogenation reaction in the presence of potassium metal as the key step. The pair of enantiomers can be separated by chiral high-performance liquid chromatography (HPLC), which showed a strong circular dichroism (CD) (Δε = 330 M–1 cm–1 at 449 nm, |gCD| = 5.8
使用阴离子环脱氢反应,由1,8-二溴菲并由1,8-二溴菲合成了13,13'-联苯并[ b ]亚苄基衍生物(一种轴向手性π扩展化合物,其中两个per亚基稠合到1,1'-联萘骨架上)。金属钾的存在是关键步骤。一对对映异构体可以通过手性高效液相色谱(HPLC)分离,该色谱显示出很强的圆二色性(CD)(在449 nm下,Δε= 330 M –1 cm –1,| g CD | = 5.8×10 – 3在453纳米),高荧光量子产率(Φ ˚F = 64%),和强圆偏振光致发光(CPL)(|克CPL | = 5×10 -3 在454 nm的溶液相中。
Phenacenes: a family of graphite ribbons. Part 3: Iterative strategies for the synthesis of large phenacenes
作者:Frank B Mallory、Kelly E Butler、Amélie Bérubé、Eddie D Luzik、Clelia W Mallory、Emilie J Brondyke、Rupa Hiremath、Phung Ngo、Patrick J Carroll
DOI:10.1016/s0040-4020(01)00240-x
日期:2001.4
large monodisperse [n]phenacenes, which are polycyclic aromatic hydrocarbon derivatives having n benzene rings fused in an extended phenanthrene-like structural motif. The key carbon–carbon bond-forming steps involve either Wittig or McMurry coupling reactions to give diarylethylenes, and oxidative photocyclizations of those diarylethylenes. tert-Butyl substituents on the phenacene framework serve as
报道了一些大的单分散[ n ]苯并菲的合成的重复策略,这些苯并菲是具有n个苯环并以延长的菲状结构基序稠合的多环芳烃衍生物。关键的碳-碳键形成步骤涉及Wittig或McMurry偶联反应以生成二芳基乙烯,以及这些二芳基乙烯的氧化光环化反应。菲骨架上的叔丁基取代基用作增溶基团。