Synthesis of an Orthogonal Topological Analogue of Helicene
作者:Torbjörn Wixe、Carl-Johan Wallentin、Magnus T. Johnson、Peter Fristrup、Sven Lidin、Kenneth Wärnmark
DOI:10.1002/chem.201302278
日期:2013.10.25
The synthesis of an orthogonaltopological pentamer analogue of helicene is presented. This analogue forms a tubular structure with its aromatic systems directed parallel to the axis of propagation, which creates a cavity with the potential to function as a host molecule. The synthetic strategy reported, based on a series of repeating Friedländer condensations that utilize pyrido[3,2‐d]pyrimidine moieties