The synthesis of a set of 1-aryl-2-aryl(3-pyridyl)ethanones 1-5 and the corresponding ketoximes 6-9 is reported. Structural studies of oximes 6, 7 and 9 were performed in solution using (1)H-NMR and in the solid state by X-ray crystallography, providing evidence of H-bonding networks. The crystal packing was controlled by homomeric intermolecular oxime...oxime H-bond interactions for 6 and coop...

New series of 2-hydrazino-7,8-dihydro-6H-cyclopenta[5,6] pyrido[2,3-d]pyrimidines and its 1,7,8,9-tetrahydrocyclopenta[5,6]pyrido[2,3-d][1,2,4]triazolo[4,3-a]pyrimidine, 1,7,8,9-tetrahydrocyclopenta[5,6]pyrido[2,3-d][1,2,3,4]tetrazolo[4,5-a]pyrimidine, 8,9-dihydro-7H-cyclopenta[5,6]pyrido[2,3-d]imidazolo[1,2-a]pyrimidine, 2-(pyrazol-1-yl)-7,8-dihydro-6H-cyclopenta[5,6]pyrido[2,3-d]pyrimidine de...

Organic conjugated compounds containing various substituents 3-amino-2,4-dicyano-1-aryl-9H-fluorene and 1-dicyanomethylene-2-aryl-indone derivatives were successfully obtained. Various routes synthesis methods, such as one-pot, multi-step, microwave irradiation (MWI), explored for efficiency. Spectroscopic methods used to characterize of the synthesized compounds. Furthermore (E)-2-(2-(anthrace...

A simple and highly efficiently method for the synthesis of 9-aryl-6- (3- methylphenyl)[1,2,4]triazolo [4,3-a]quinolines 8 by oxidation corresponding aryl aldehyde 1-[3-(3-methylphenyl)quinolin-2- yl]hydrazones 7 using iodobenzene diacetate [PhI(OAc)2] in solid state at RT under grinding conditions is described. The yields are very good purity high. structures compounds 3-8 were confirmed their...

Abstract A boron trifluoride catalysed reaction of coplanar 9-(phenyl­ethynyl)-9H-fluoren-9-ols with various 2-aminobenzamides affords a number highly functionalized, conjugated (Z)-2-((2-(9H-fluoren-9-ylidene)-1-phenylethylidene)amino) benzamides in excellent yield. The the presence N-bromosuccinimide (E)-5-bromo-2-((2-bromo-2-(9H-fluoren-9-ylidene)-1-phenylethylidene)amino)benz­amides very go...

Ultrafast photochromic molecules are being actively investigated to meet the demand for fast optical switching systems. Inspired on irreversible cyclization of 9-phenylphenalenone plant metabolites yield highly-coloured naphthoxanthenes purpose defense against pathogens, aryl-substituted phenalenones have been developed that undergo a similar but reversible reaction. The lifetime naphthoxanthen...