Synthesis of tetrafunctionalized pentiptycenequinones for construction of cyclic dimers with a cylindrical shape by boronate ester formation
摘要:
New tetrasubstituted pentiptycenequinone derivatives 1 and 2 having two sets of dial moieties in a syn orientation were synthesized from the corresponding 2,3-disubstituted anthracene derivatives. The semicircular scaffold of these molecules is expected to be useful to create a belt-like structure having an aromatic Indeed, the reaction of 1 with 1,4-phenylenediboronic acid or 4,4'-biphenyldiboronic acid quantitatively gave a 2:2 macrocyclic product via boronate ester formation. The efficient formation of these cyclic structures can be explained by favorable intramolecular cyclization at the final step. (C) 2015 Elsevier Ltd. All rights reserved.
Synthesis, structures, and properties of peripheral o-dimethoxy-substituted pentiptycene quinones and their o-quinone derivatives
作者:Jing Cao、Hai-Yan Lu、Chuan-Feng Chen
DOI:10.1016/j.tet.2009.07.090
日期:2009.9
microporous structure in the solid state. For the pentiptycene quinones containing the dimethoxybenzene unit(s) and the quinone group(s) simultaneously, interesting intramolecular charge transfer interactions and electrochemical properties were also shown. These peripheral-substituted pentiptycene quinones and their o-quinone derivatives can be used as new useful building blocks and will find wide applications