Carbon Networks Based on Dehydrobenzoannulenes. 4. Synthesis of “Star” and “Trefoil” Graphdiyne Substructures via Sixfold Cross-Coupling of Hexaiodobenzene
作者:W. Brad Wan、Michael M. Haley
DOI:10.1021/jo010183n
日期:2001.6.1
the all-carbon network graphdiyne, are described. Assembly of these macrocycles is accomplished via 6-fold Sonogashira cross-coupling of hexaiodobenzene using Pd[P(o-Tol)(3)](2) and CuI as the catalytic system. The development of these modified Sonogashira conditions is detailed. This work has led to the synthesis of a new family of hexakis(phenylbutadiynyl)benzene derivatives (4a-c), the largest of
描述了星形和三叶形的聚乙炔基芳族结构的合成和表征,该结构代表了全碳网络石墨二炔的模型子结构。这些大环的组装是通过使用Pd [P(o-Tol)(3)](2)和CuI作为催化体系的六碘代苯的6倍Sonogashira交叉偶联来完成的。这些改良的Sonogashira条件的发展过程进行了详细介绍。这项工作导致了新的六(苯基丁二炔基)苯衍生物家族(4a-c)的合成,其中最大的是D(3)(h)()对称的“三叶” 2,它由三个[18]环戊烯在一个普通的苯环上稠合。还描述了合成“车轮” 3的尝试。化合物2代表了迄今为止的石墨二炔网络的最大片段。