Functional derivatives of (bi)phenyl-substituted carbazoles as building blocks for electro-active polymers

A wet- and dry-process feasible carbazole type host for highly efficient phosphorescent OLEDs

“…The host materials 4 and 5 were synthesized by the coupling reaction of 1,6-bis(3-iodocarbazol-9-yl)hexane ( 3) with an excess amount of 6-methoxy-3pyridinylboronic acid and 2-methoxy-3-pyridinylboronic acid, respectively. Moreover, host 6 was synthesized by the coupling reaction of 3,6-di-iodo-9-ethylcarbazole (DECr) 20 with an excess amount of 2-methoxy-3-pyridinylboronic acid. The key material, i.e.…”