Design, synthesis and characterization of novel thienylpyridazine derivatives for optical applications

We report in this work the synthesis and the photophysical characterization of novel pyridazine derivatives, functionalized in position 3, with different (hetero)aromatic groups (indole, cyanophenyl, nitrophenyl). The diazines were synthesized by Suzuki coupling of 3-bromo-6-(thiophen-2-yl)pyridazine with commercially available (hetero)aryl-boronic acids. Due to their optical properties these push-pull π-conjugated systems can have application as versatile building blocks for the preparation of DSSCs, OLEDs, and nonlinear optical (SHG) materials.FCT, FEDER, QREN PEst-C/QUI/UI0686/2013 (FCOMP-01-0124-FEDER-037302