scholarly journals Microwave assisted synthesis and antimicrobial evaluation of symmetrical 1,2-Phenylenediamine Schiff’s base derivatives

Author(s):  
Abdul M Gbaj
2018 ◽  
Vol 55 (12) ◽  
pp. 2744-2759 ◽  
Author(s):  
Serap Basoglu Ozdemir ◽  
Neslihan Demirbas ◽  
Ahmet Demirbas ◽  
Faik Ahmet Ayaz ◽  
Nesrin Çolak

2011 ◽  
Vol 8 (1) ◽  
pp. 305-311 ◽  
Author(s):  
Priyanka Kamaria ◽  
N. Kawathekar ◽  
Prerna Chaturvedi

In order to develop new antimicrobial agents, a series of Schiff bases of indole-3-aldehyde were synthesized by microwave assisted synthesis by takingDMFas solvent and evaluated for their antimicrobial activity. All the synthesized compounds were characterized byIR,1HNMRand mass spectral analysis. All compounds were tested against five gram positive and five gram negative bacterial strains and one fungal strain. All compounds exhibited better activity against gram positive strains than against gram negative strains and the compounds were found more active againstS.aureusandB.subtilis.


2017 ◽  
Vol 22 (1) ◽  
pp. 57-70 ◽  
Author(s):  
Dongamanti Ashok ◽  
Srinivas Gundu ◽  
Vikas Kumar Aamate ◽  
Mohan Gandhi Devulapally

2018 ◽  
Vol 63 (2) ◽  
pp. 3918-3923
Author(s):  
S Pazhinivel Sakthinathan ◽  
Ramamoorthy Suresh ◽  
Dakshnamoorthy Kamalakkannan ◽  
Veerandiran Mala ◽  
Kaliyan Sathiyamoorthi ◽  
...  

INDIAN DRUGS ◽  
2018 ◽  
Vol 55 (03) ◽  
pp. 13-18
Author(s):  
R. Somani ◽  
◽  
P. Dubey ◽  
S. Zine

Schiff’s base constitutes a significant class of compounds for new drug development. They are widely used for industrial purposes and also exhibit a broad range of biological activities. The search for Schiff’s base containing compounds with more selective activity and lower side effects continues to be an active area of argument examination in medicinal chemistry. The biphenyl molecule consists of two connected phenyl rings. Biphenyl ring scaffolds are fairly non-reactive in nature. They enhance the log-P values; increase the tropical polar surface area (TPSA) of the molecule, act as hydrophobic carrier across biological membrane, thus, increasing the bioavailability of compounds. In the present work, a series of Schiff’s bases of biphenyl-4-carboxylic acid have been synthesized. These derivatives were characterized by elemental analysis, IR, and 1H NMR spectral data and have been explored for anti-bacterial, anti-fungal and anti-tubercular activities. The synthesized compounds have shown excellent anti-fungal potential, making them good candidates for future studies in antifungal research.


2019 ◽  
Vol 84 (3) ◽  
pp. 237-244
Author(s):  
Dongamanti Ashok ◽  
Rangu Kavitha ◽  
Srinivas Gundu ◽  
Madderla Sarasija

A new series of 6-[3-aryl-1-phenyl-4?,5?-dihydro[4,5?-bi-1H-pyrazol]-3?-yl]-2H-chromen-5-ol derivatives was synthesized by Michael addition of chalcones 5a?j with hydrazine hydrate in presence of sodium acetate under conventional heating and microwave irradiation. Structural assignment of the products was confirmed based on IR, 1H-NMR, 13C-NMR, MS and analytical data. All the synthesized compounds 6a?j were screened for their antimicrobial activity against various bacterial and fungal strains. Most of the compounds exhibited variable range of antimicrobial activity and compounds 6c?f and 6i showed promising antimicrobial potency.


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