A versatile palladium-catalyzed synthesis of n-alkyl-substituted oligo-p-phenyls

Article abstract of DOI:10.1055/s-1996-4260

High-yield Pd-catalyzed syntheses of constitutionally homogeneous, n-alky1-substituted oligo-p-phenyls having three to fifteen benzene rings connected to each other exclusively in the 1,4-(para-) fashion are reported. Most of the oligomers described readily dissolve in common organic solvents. Furthermore, their thermal phase-transition temperatures show that some of these rodlike oligomers can exist in different crystalline modifications and/or form liquid-crystalline mesophases.