Heterocyclic chemistry offers an example for the lack of distinct demarcations; in fact, it
pervades the plurality of the other chemical disciplines. Heterocycles are inextricably woven …

Some new 2‐(5‐substituted‐1, 3, 4‐oxadiazole‐2‐yl)‐1, 3‐benzothiazole (3a-j) were
synthesized by refluxing benzothiazolyl carboxyhydrazide with different aryl acids in …

Cyclization reaction has been used to preparation of series heterocyclic azo-azomethine
ligands through many steps, the first step: esterification of carboxylic terminal, then …

Several compounds were synthesized in this studying via azotation reaction with acetyl
acetone which linked with more than one azo group, they have wide spectrum from …

All compounds in this work prepared via mannich reaction through various starting materials
like (furan, thiophene, benzothiazole derivatives) with functional groups in terminals of …

A series of new 3-substitutedphenyl-4-substitutedbenzylideneamino-1, 2, 4-triazole Mannich
bases and bis-Mannich bases were synthesized through Mannich reaction with high yields …

A series of novel 5-substituted-1, 3, 4-oxadiazole Mannich bases and bis-Mannich bases
have been conveniently synthesized in good yields. Their structures were characterized by …

A series of novel title compounds 6a-6r and 7a-7c have been synthesized by Mannich
reaction of the new triazole Schiff base intermidiates, substituted piperazine and …

Abstract Series of novel furan/thiophene and piperazine‐containing 1, 2, 4‐triazole Mannich
bases and bis (1, 2, 4‐triazole) Mannich bases have been conveniently synthesized via …

Some new 2-Amino substituted-benzothiazole (A1-7) were synthesized by treating with
KSCN in presence of glacial acetic acid and with different Substituted aniline. Structures of …