Heterocycles form by far the largest of the classical divisions of organic chemistry. Moreover,
they are of immense importance not only both biologically and industrially but also to the …

The Pd-catalyzed transformation of N-phthaloyl hydrazones into nitriles involving the
cleavage of an N–N bond is reported. The use of N-heterocyclic carbene as a ligand is …

In the reaction of 2-amino-3-carbethoxythiophene derivative 2b with hydrazine hydrate the
respective aminocarbohydrazide 3 was isolated. Treatment of the latter product with carbon …

2-Mercapto-4 (3H)-quinazolinone derivatives represent one of the most active classes of
heterocycles possessing a wide spectrum of industrial1 and biological activities. 2-5 Due to …

In the current study, a series of 5-(4-substituted phenyl)-1, 3, 4-oxadiazole-2-thiols (4a-h)
were prepared from 4-substituted benzoic acid hydrazides (3a-h). The chemical structures of …

Abstract The new 1, 3, 4-oxadiazolylquinoxaline ring system was synthesized by the
condensation of the quinoxaline 1, 4-dioxide acid hydrazide 6 with acetyl chloride in one-pot …

Abstract Quinolones, isothiazoloquinolone, and quinazolin-2, 4-diones represent a series of
potent antibacterial agents. In this investigation, a series of novel 6-fluoro-7-(cyclic amino)-1 …

Abstract In the present study, 5-(4-substituted phenyl)-1, 2, 4-triazole-3-thiol (5a-e) were
synthesized from 5-(4-substituted phenyl)-1, 3, 4-oxadiazole-2-thiol (4a-e) and their …

Synthesis of Novel Quinazolines as Potential Inhibitors of DNA-PK, PI3K, Platelet
Aggregation, and Bacterial Propagation Page 1 Synthesis of Novel Quinazolines as …

Нові похідні 2Н, 6Н-піримідо [2, 1-b][1, 3, 4] тіадіазин-6-онів з кумариновою ланкою були
одержані в результаті взаємодії 3-(α-бромацетил) кумаринів з З-аміно-2-тіоксо-1, 2, 3, 4 …