π-Extended push-pull azo-pyrrole photoswitches: synthesis, solvatochromism and optical band gaps

A new family of push-pull biphenyl-azopyrrole compounds 3b-g and 4b-d was efficiently obtained via a Suzuki cross-coupling reaction between 2-(4′-iodophenyl-azo)- N -methyl pyrrole ( 1a ) or 3-(4′-iodophenyl-azo)-1,2,5-trimethyl pyrrole ( 2a ) and 4′-substituted phenyl boronic acids in excellent yie...

Ausführliche Beschreibung