Synthesis of methyl-substituted main-chain-type organoboron quinolate, polymers and their emission color tuning

Highly fluorescent main-chain-type organoboron quinolate polymers were prepared by means of Sonogashira-Hagihara coupling reaction between diyne monomers and methyl-substituted diiodo-organoboron quinolates. By combining methyl substitution of quinolinol ligands and incorporation of organoboron quinolate into polymer main chain, more efficiently luminescent materials with blue-shifted emission were successfully synthesized.