Syntheses, Evaluation and Characterization of Some 1, 3, 4-Oxadiazoles as Antimicrobial Agents [PDF]
1,3,4-Oxadiazoles show various biological activities and have been synthesized from different compounds. 1,3,4-oxadiazole is popularly known for its antimicrobial, anti-inflammatory, pesticidal and antihypertensive activities etc.
Niti Bhardwaj +3 more
doaj +2 more sources
Synthesis and Antimicrobial Evaluation of Some New Oxadiazoles Derived from Phenylpropionohydrazides
In this study a series ofnew1-(2-aryl-5-phenethyl-1,3,4-oxadiazol-3(2H)-yl)ethanones 2a-e was synthesized by the cyclization of imines 1a-e using acetic anhydride. The products were evaluated for anti-bacterial and anti-fungal activity.
Gunjan Singh +2 more
exaly +3 more sources
SYNTHESIS OF MONO-SUBSTITUTED AND SIMMETRICALLY 2, 5-DISUBSTITUTED 1, 3, 4-OXADIAZOLES [PDF]
In recent years 1,3,4-oxadiazoles have received considerable attention due to their wide range of biological activities and practical importance. They form an important class of fi ve-member heterocyclic compounds with a variety of derivatives.
Z. Ribcovskaia, F. Macaev
doaj +2 more sources
A series of new derivatives of 4-(2-chloroethyl)morpholine hydrochloride (5) were efficiently synthesized. Briefly, different aromatic organic acids (1a-f) were refluxed to acquire respective esters (2a-f) using conc. H2SO4 as catalyst.
Aziz-ur-Rehman +11 more
doaj +1 more source
Synthesis of Some Substituted 1,3,4-Oxadiazoles from Hydrazones [PDF]
In this paper the synthesis of some 2-(3-pyridyl)-5-aryl-1,3,4-oxadiazoles from hydrazones is reported. Nicotinic acid was converted to ethyl nicotinate (1) by its reaction with thionyl chloride and the resultant acid chloride was treated with absolute ...
Khalid Daoud, A. Ahmad, Amal Ali
doaj +1 more source
2D-QSAR study of synthesized novel derivatives of 1,3,4- Oxadiazoles as anti-inflammatory activity
Oxadiazole is a five-membered heterocyclic compound containing oxygen and two nitrogen atoms at C-1, C-3 and C-4 positions respectively. These derivatives are synthesized by both conventional as well as microwave-assisted.
M Somashekhar, R B Kotnal
doaj +1 more source
Synthesis of some substituted 1,3,4-oxadiazoles, thiadiazoles and 1,2,4-triazoles [PDF]
In this paper the synthesis of some substituted 1,3,4-oxadiazoles, 1,3,4-thiadiazoles and 1,2,4-triazoles is reported. Ethyl methacrylate was treated with hydrazine hydrate in ethanol to give the corresponding hydrazide (1).
Shereen R. Mohamed
doaj +1 more source
2,5-Disubstituted 1,3,4-oxadiazoles are privileged versatile scaffolds in medicinal chemistry that have exhibited diverse biological activities. Acetyl- (AChE) and butyrylcholinesterase (BChE) inhibitors are used, e.g., to treat dementias and myasthenia ...
Václav Pflégr +5 more
doaj +1 more source
Synthesis and Study of Some 4-Chlorophenoxy Methyl Substituted amido1,3,4-Oxadiazoles, 1,3,4-Thiadiazoles and 1,2,4-Triazoles from 4-Chloro phenoxy acetic acid [PDF]
: In this paper the synthesis of some substituted 1,3,4-oxadiazole, 1,3,4-thiadiazoles and 1,2,4-triazoles is reported. 4-Chlorophenol was treated with chloroacetic acid to give 4-chlorophenoxy acetic acid (C1) which was reacted with thionyl chloride ...
Mudhar A. Othman, Khalid M. Daoud
doaj +1 more source
Synthesis of Some 1, 3, 4- Oxadizole Derivatives from Naproxen and Acetyl Chloride [PDF]
A seriers of 1, 3, 4-oxadiazol-2-thion were synthesized by the reaction of naproxen (or acetyl) amino acid hydrazides (glycine, valine, leucine, isoleucine and tyrosine) with carbon disulphide in alkaline medium.
Alya A. Dawood
doaj +1 more source

