Synthesis and NMR Analysis on Intermediate of Polyfluorene Derivative

An important intermediate of D-A-D polyfluorene derivative,2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaboralan-2-yl)-9,9-dioctylfluorene,was synthesized from Suzuki coupling polymerization.One-and two-dimensional NMR techniques(i.e.,1H NMR,13C NMR,DEPT,1H-1H COSY,HMQC and HMBC) were used to assign the proton and carbon chemical shifts and to elucidate the structure of the compound.