Light-emitting analogues based on triphenylamine modified quinoxaline and pyridine[2,3-b]pyrazine exhibiting different mechanochromic luminescence

A series of light-emitting analogues, [4-(2,3-diphenyl-quinoxalin-6-yl)-phenyl]-diphenyl-amine (TPA-DPQ) and [4-(2,3-diphenyl-pyrido[2,3-b]pyrazin-7-yl)-phenyl]-diphenyl-amine (TPA-DPP) are synthesized and characterized. TPA-DPQ and TPA-DPP possess similar donor-acceptor structures, in which triphenylamine is used as the electron donor...

Synthesis, Toxicity Profile and Pharmacological Evaluation of Some New N,N-Diphenyl Amine Derivatives with Special Reference to Analgesic and Anti-inflammatory Activity

The present work was aimed to synthesize eight new diphenylamine derivatives by the reactions of 2-chloro-N-(4-(diphenyl amino) thiazol-2-yl)acetamide with substituted phenols in the chloroform along with anhydrous potassium carbonate and potassium iodide. The structures of newly synthesized compounds were characterized by IR, NMR, Mass and elemental analysis techniques. Toxicity profile (acute and subacute oral toxicity) and biological activity (analgesic and anti-inflammatory activity) of the synthesized derivatives was performed. Findings of the present work suggested that the synthesized compounds may be one of the excellent potent compounds to treat pain and inflammation. Therefore compounds of this group especially AK-4 (N-(4-(diphenylamino)thiazol-2-yl)-2-(2- nitrophenoxy)acetamide) could be an excellent starting point to build up new lead compounds in the management of pain and inflammation.

Fabrication of D–π–A sensitizers based on different donors substituted with a dihydropyrrolo[3,4-c]pyrrole-1,4-dione bridge for DSSCs: influence of the CDCA co-absorbent

The effect of co-absorbance on the performance of DSSC devices with a new design of dimer sensitizers possessing a 2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione (DPP) bridge and various donor groups (carbazole, diphenyl amine, indole) are reported in the present work.

A molecularly imprinted polymer with flash column chromatography for the selective and continuous extraction of diphenyl amine

The aim of this study was to prepare MIP for the selective recognition of DPA and its combination with flash column chromatography for the continuous extraction of DPA from ammunition waste.