Convenient methods for preparing π-conjugated linkers as building blocks for modular chemistry
作者:Jiří Kulhánek、Filip Bureš、Miroslav Ludwig
DOI:10.3762/bjoc.5.11
日期:——
and optimized procedures for preparing extended pi-conjugated linkers are described. Either unsubstituted or 4-donor substituted pi-linkers bearing a styryl, biphenyl, phenylethenylphenyl, and phenylethynylphenyl pi-conjugated backbone are functionalized with boronic pinacol esters as well as with terminal acetylene moieties allowing their further use as buildingblocks in Suzuki-Miyaura or Sonogashira
Oligo-p-phenylenes have proven to be versatile building blocks for the generation of self-assembled nanoaggregates with interesting optical properties via vapor deposition on solid supports. Preliminary studies have shown that both the properties and the morphologies of these aggregates can be influenced by the introduction of functional groups. To this end, we have developed general approaches to the synthesis of symmetrically and unsymmetrically 1,4′′′-substituted p-quaterphenylenes through the application of a reliable Suzuki cross-coupling strategy.