Next Article in Journal
Absorbable Phenylpropenoyl Sucroses from Polygala tenuifolia
Previous Article in Journal
Opportunities Offered by Chiral η6-Arene/N-Arylsulfonyl-diamine-RuII Catalysts in the Asymmetric Transfer Hydrogenation of Ketones and Imines
Article Menu

Article Versions

Export Article

Open AccessArticle
Molecules 2011, 16(7), 5496-5506; doi:10.3390/molecules16075496

Synthesis and Antibacterial Activities of Novel Imidazo[2,1-b]-1,3,4-thiadiazoles

Chemistry Department, Faculty of Science, Alexandria University, Ibrahimia P.O. Box 426, Alexandria 21321, Egypt
Author to whom correspondence should be addressed.
Received: 18 March 2011 / Revised: 2 June 2011 / Accepted: 7 June 2011 / Published: 28 June 2011
(This article belongs to the Section Organic Synthesis)
Download PDF [247 KB, uploaded 18 June 2014]


2-Amino-5-(2-aryl-2H-1,2,3-triazol-4-yl)-1,3,4-thiadiazoles 2-4 have been synthesized by the reaction of 2-aryl-2H-1,2,3-triazole-4-carboxylic acids 1 with thiosemicarbazide. Their reaction with phenacyl (p-substituted phenacyl) bromides led to formation of the respective 6-aryl-2-(2-aryl-2H-1,2,3-triazol-4-yl)imidazo[2,1-b]-1,3,4-thiadiazoles 5. Reactivity of the latter fused ring towards reaction with different electrophilic reagents afforded the corresponding 5-substituted derivatives 6-8. The structure of the above compounds was confirmed from their spectral characteristics. Some of these compounds were found to possess slight to moderate activity against the microorganisms Staphylococcus aureus, Candida albicans, Pseudomonas aeruginosa, and Escherichia coli.
Keywords: 1,3,4-thiadiazole; imidazo[2,1-b]thiadiazole; electrophile; thiosemicarbazide; phenacyl bromide; antimicrobial activity 1,3,4-thiadiazole; imidazo[2,1-b]thiadiazole; electrophile; thiosemicarbazide; phenacyl bromide; antimicrobial activity
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Atta, K.F.M.; Farahat, O.O.; Ahmed, A.Z.A.; Marei, M.G. Synthesis and Antibacterial Activities of Novel Imidazo[2,1-b]-1,3,4-thiadiazoles. Molecules 2011, 16, 5496-5506.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]

Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top