Synthesis of aromatic polymers containing anthrazoline and isoanthrazoline units

Abstract

The condensation of bisketomethylene monomers with either 4,6‐dibenzoyl‐1,3‐phenylenediamine or 2,5‐dibenzoyl‐1,4‐phenylenediamine catalyzed by acid affords high molecular weight polymers containing the anthrazoline and isoanthrazoline units in the polymer main chain. Base is not an effective catalyst for the production of high molecular weight polymer. The phenyl substitution on the anthrazoline and isoanthrazoline units increases the solubility of these polymers over those in which phenyl substitution is absent. The rodlike character of these polymers, which can be altered by positional isomerism in the chain, has an effect on the solution properties.

Tuning the Photophysical Properties of Cyclometalated Ir(III) Complexes by a Trifluoroacetyl Group

“…All reagents, unless otherwise specified, were purchased from Aldrich and were used as received. 2,4-diphenylquinoline (dpqH) and 2-(4 -bromophenyl)-4-phenylquinoline (bppqH) were obtained via Friedländer reactions [9,10]. UV/Vis absorption spectra were obtained on a Shimadzu UV-2501 PC spectrophotometer.…”

New red electrophosphor based on Ir(III) complex of 2,3,4-triphenylquinoline

“…Synthesis of tpq: 2,3,4-Triphenylquinoline ligand was obtained from the Friedlander reaction of 2-aminobenzophenone with deoxybenzoin [10,11]. To a solution of 1.97 g (10.0 mmol) of 2-aminobenzophenone and 1.96 g (10.0 mmol) of deoxybenzoin in 20 ml of glacial acetic acid was added 1.0 ml of concentrated sulfuric acid.…”

Heteroleptic tris-cyclometalated iridium(III) complexes with phenylpridine and diphenylquinoline derivative ligands

“…1. 2.1.1. Synthesis of ligand : dpq, dpq-3-F, dpq-CF3 Dpq, dpq-3-F and dpq-CF 3 ligands were obtained from the Friedlander Reaction [14,15]. The concentrated sulfuric acid of 1.0 ml was added to a solution of 1.972 g (10.0 mmol) of 2-aminobenzophenone and 1.202 g (10.0 mmol) of acetophenone (for dpq), 1.381 g (10.0 mmol) of 3′-fluoroacetophenone (for dpq-3-F) or 1.882 g (10.0 mmol) of 4′-(trifluoromethyl) acetophenone (for dpq-CF 3 ) in 30 ml of glacial acetic acid.…”