Atropisomerism in the 2-arylimino-N-(2-aryl)-thiazoline series

Synthesis, Characterization and Study of Some N-Substituted Aryl-2- ({4-[(Substituted Aryl Carbamoyl) Methyl]-5-(Pyridin-4-yl)-4H-1, 2, 4-Triazol-3-yl} Sulfanyl) Acetamide

Pathogenic infections and inflammation are very common ailments humans suffer. Upsurge of resistant pathogens has impeded the antimicrobial drug development process in recent years and the search of new antimicrobial agents is clearly evident from the literature. In line with these developments the synthesis of N-substituted aryl-2-({4-[(substituted aryl carbamoyl) methyl]-5-(pyridin-4-yl)-4H-1...

Calix[n]metallocenyl[m]phyrins (n = 1, 2 and m = 2, 4): aryl vs. alkyl.

The syntheses, spectral and structural characterization of metallocenes incorporated normal and expanded calixphyrins are reported.

Illustrating atropisomerism in the porphyrin series using NMR spectroscopy

The existence of biphenyl-type atropisomerism in porphyrins has been known for more than twenty-five years. Over the last two decades, different examples of this type of stereoisomerism have been reported in the literature with regard to the use of synthetic metalloporphyrin complexes as models of heme-containing enzymes. In this article, we present a clear 1H NMR study to illustrate the concep...

Tungstophosphoric acid embedded magnetic chitosan as a green catalyst for the synthesis of N-cyclohexyl-3-aryl quinoxaline-2-amines

In the present study, a novel catalyst was well designed by incorporating the tungstophosphoric acid into the magnetic chitosan, as highly stable composite, in which the iron oxides were used the strong super-magnetic core. The prepared composite was characterized by several methods, including FTIR, XRD, SEM, TEM and EDS and its catalytic activity was examined in a facile, green and highly effi...

Highly enantioselective synthesis of n,n-dialkylbenzamides with aryl-carbonyl axial chirality by rhodium-catalyzed [2+2+2] cycloaddition.