Some novel 2,3-dioxo-5-(substituted)-arylpyrroles have been synthesized. Among these, pyrrolidine compound 1b was converted to 2,3-dioxo-5-aryl pyrrolidine 2b. Finally a set of hydrazone derivatives was obtained from the reaction of 2b with various hydrazine salts. The structures of all the new synthesized compounds were confirmed by elemental analyses, IR and 1H-NMR spectra.

The title compound, C(18)H(16)Br(2)N(4), is a linear double Schiff base compound having two parallel 4-bromo-phenyl groups connected across a crystallographic inversion centre by flexible C-C and C=N-N=C bonds and stabilized in the solid state by weak inter-molecular Br⋯Br inter-actions [3.7992 (11) Å], generating an infinite two-dimensional network structure.

The hydrazone functional group has been extensively studied and used in the context of supramolecular chemistry. Its pervasiveness and versatility can be attributed to its ease of synthesis, modularity, and most importantly unique structural properties, which enable its integration in different applications. This review provides an overview of the utilization of hydrazones in three supramolecul...

Abstract Novel hydrazone and 1,2,4-triazole-3-thione derivatives were obtained via the reaction of N 1 , 3 ,2-triaryl-6-hydroxy-6-methyl-4-oxocyclohexane-1,3-dicarboxamides with acid hydrazides thiosemicarbazide, respectively. Structure products was proved using IR H NMR spectroscopy methods. Some synthesized compounds tested for antimicrobial activity

Using mass spectrometry coupled with LC analysis we report evidence of diastereomer dependent fragmentation and oligomerization reactions in the ionization of acyl-hydrazone-based libraries of cyclic oligomers. These effects can significantly affect the accuracy of MS-based quantitations, but also provide a venue for examining ionization effects in dynamic combinatorial libraries (DCLs).

Cyclic hydrazones are efficient ketyl radical acceptors in reductive coupling cyclizations mediated by samarium diiodide, affording cyclic amino alcohols with controlled stereochemistry at the new aminated stereocenter. This approach has been successfully applied to the stereoselective synthesis of a fully functionalized trehazolin cyclitol starting from D-glucose, where the required cyclic hyd...

In the title complex, [Cu(C(15)H(11)BrN(2)O(3))(C(5)H(5)N)], the central Cu(II) atom is in a square-planar CuN(2)O(2) coordination environment formed by the tridentate hydrazone and the monodentate pyridine ligands with N atoms in a trans-arrangement about the Cu(II) atom.