Convenient methods for preparing π-conjugated linkers as building blocks for modular chemistry

Abstract

Simple, straightforward and optimized procedures for preparing extended π-conjugated linkers are described. Either unsubstituted or 4-donor substituted π-linkers bearing a styryl, biphenyl, phenylethenylphenyl, and phenylethynylphenyl π-conjugated backbone are functionalized with boronic pinacol esters as well as with terminal acetylene moieties allowing their further use as building blocks in Suzuki–Miyaura or Sonogashira coupling reactions.

Keywords

• boronic acid
• donor/acceptor
• linker
• Sonogashira reaction
• property tuning
• push-pull
• Suzuki–Miyaura reaction