Artur M. S. Silva

TL;DR: For the bromo-4-dimethylaminobenzylidene-hydrazine (Bis(3-bromo, 4-dimethylbenylidenesidene) hydrazine and bis(3 -chloro,4 -dimethylbenylidsene)hydrazines, the authors have been synthesized, and their monoclinic crystal structures solved in space group P21/c.

TL;DR: In this paper, new heterocyclic compounds have been obtained and characterized, which are structural analogs of dehydroacetic acid (DHA) and react with o-phenylenediamine according to solvents and reaction conditions.

TL;DR: In this paper, the Ni(II) and Cu(II)-complexes of β-amino-meso-tetraphenylporphyrin with dimethyl acetylenedicarboxylate (DMAD) and diethyl ethoxymethylenemalonate were converted into the corresponding esters of pyridinone-fused porphyrins by using three different cyclization protocols: conventional heating, microwave irradiation, and Eaton's reagent.

TL;DR: Proton and carbon-13 NMR studies in solution and CP-MAS NMR in the solid state of a polymorphic azo dye derived from 2-amino-5-nitrothiazole were performed and the results were discussed and compared with theoretical data from quantum chemical calculations as mentioned in this paper.

TL;DR: Electrical impedance spectroscopy appears to be a convenient tool for in vitro cytotoxicity analysis, which could be useful for identifying drug effects and side effects during early phases of drug discovery and development.