scholarly journals Synthesis and biological Evaluation of Some Abbreviated New Triazolopyrimidines

2019 ◽  
pp. 354-361
Author(s):  
Jatin Vora ◽  
Kartik Vyas
Keyword(s):  
Biginelli Reaction ◽  
Biological Evaluation ◽  
Spectroscopic Techniques ◽  
The Novel ◽  
Antibacterial And Antifungal Activity ◽  
1H Nuclear Magnetic Resonance ◽  
Elemental Analyses ◽  
Antibacterial And Antifungal ◽  
Synthesis And Biological Evaluation ◽  
Compound Series

A cogent synthesis of completely new compound series of by 6-(3,5-bis(trifluoromethyl)phenyl)-4-(4-chlorophenyl)-3,4-dihydro pyrimidine-2(1H)-one (Biginelli reaction) was achieved by continue heating of (E)-1-(3,5-bis(trifluoromethyl)phenyl)-3-(substituted phenyl)prop-2-en-1-one and urea for 5 hours with 40% KOH and ethyl alcohol. (E)-1-(3,5-bis(trifluoromethyl)phenyl)-3-(substituted phenyl)prop-2-en-1-one is produced by Claisen-Schmidt Condensation. In this condensation 1-(3,5-bis(trifluoromethyl)phenyl)ethanone and different aldehyde are mixed. All the novel compound series were characterized by infrared and 1H nuclear magnetic resonance and mass spectroscopic techniques and by elemental analyses. The newly synthesized compounds were evaluated for their antibacterial and antifungal activity

scholarly journals Synthesis and Antimicrobial Evaluation of Some Condensed New Triazolopyrimidines

2019 ◽  
pp. 397-404
Author(s):  
Jatin Vora ◽  
Kartik Vyas
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Biginelli Reaction ◽  
Spectroscopic Techniques ◽  
Efficient Synthesis ◽  
Antibacterial And Antifungal Activity ◽  
1H Nuclear Magnetic Resonance ◽  
Elemental Analyses ◽  
Antimicrobial Evaluation ◽  
Antibacterial And Antifungal ◽  
Compound Series

An efficient synthesis of a novel compound series of 2-[3,5-bis(trifluoromethyl)phenyl]-4-(substitutedphenyl)-1,4-dihydropyrimido[1,2-a]benzimidazole (Biginelli reaction) was accomplished from (E)-1-(3,5-bis(trifluoromethyl)phenyl)-3-(4-chlorophenyl)prop-2-en-1-one and 1H-benzo[d]imidazol-2-amine Microwave 25 minute heating after the product obtained another method Conventional 7 hrs, with 30 % KOH, Ethanol. Here (E)-1-(3,5-bis(trifluoromethyl)phenyl)-3-(4-chlorophenyl)prop-2-en-1-one(Chalcone) is prepared by 1-(3,5-bis(trifluoromethyl)phenyl)ethanone and different aldehyde with Claisen-Schimidt Condensation.All the newly synthesized compounds were characterized by infrared and 1H nuclear magnetic resonance and mass spectroscopic techniques and by elemental analyses. The newly synthesized compounds were evaluated for their antibacterial and antifungal activity.

scholarly journals Chemistry and Biological Evaluation of Some New Triazolopyrimidine Derivatives Containing Isopropyl Group

2019 ◽  
pp. 390-396
Author(s):  
Janaki H. Chauhan ◽  
Haresh K. Ram
Keyword(s):  
Antifungal Activity ◽  
1H Nmr ◽  
Biological Evaluation ◽  
Spectroscopic Techniques ◽  
Efficient Synthesis ◽  
Antibacterial And Antifungal Activity ◽  
Isopropyl Group ◽  
Elemental Analyses ◽  
Antibacterial And Antifungal

An efficient Synthesis of a novel series of N,7-bis(substitutedphenyl)-4,7-dihydro-5-isopropyl-[1,2,4]triazolo-[1,5-a]pyrimidine-6-carboxamide (4a-j) was accomplished from N-(substituedphenyl)-4-methyl-3-oxopentanamide, 3-amino-1,2,4-triazole and different aldehyde reflex 20 min with DMF and then after the cooling product was obtained. All the recently synthesized compounds were characterized by the Mass, IR, 1H-NMR and mass spectroscopic techniques and by elemental analyses. The newly synthesized compounds were assessed for their antibacterial and antifungal activity.

Synthesis and Biological Evaluation of Chalconyl Incorporated Schiff’s Bases of Sulphonamides

2017 ◽  
Vol 8 (03) ◽  
Author(s):  
Neeraj Kumar ◽  
Dhruti Bhatt ◽  
Chandra Shekhar Sharma ◽  
Hamendra Pratap Singh ◽  
Harshda Pandiya ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Antifungal Activity ◽  
Biological Evaluation ◽  
Antibacterial And Antifungal Activity ◽  
Schiff’S Bases ◽  
E Coli ◽  
Schiff's Bases ◽  
Microbial Strains ◽  
Antibacterial And Antifungal ◽  
Synthesis And Biological Evaluation

A series of of Chalconyl Incorporated Schiff’s Bases of Sulphonamides was synthesized by reacting substituted chalcone derivatives with Sulphacetamide sodium in methanol. All the title compounds synthesized (2a-2d) were tested for antibacterial and antifungal activity using E. coli, P. aeruginosa, S. aureus, S. pyogenus and C. albicans, A. niger and A. clavatus respectively as microbial strains and Sulphacetamide sodium as standard. The compound 2d showed significant antibacterial activity and 2a showed moderate antifungal activity as compared with Sulphacetamide Sodium.

scholarly journals Design, Synthesis and Biological Evaluation of Novel Thiazolidinone Derivatives

2021 ◽  
Vol 33 (10) ◽  
pp. 2379-2385
Author(s):  
Reshma Sathyanarayana ◽  
Boja Poojary ◽  
B. Sukesh Kumar ◽  
Vasantha Kumar ◽  
Rajesh P. Shastry ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Radical Scavenging ◽  
Biological Evaluation ◽  
The Novel ◽  
Design Synthesis ◽  
Scavenging Effect ◽  
Elemental Analyses ◽  
Radical Scavenging Effect ◽  
Ft Ir ◽  
Synthesis And Biological Evaluation

In present study, the novel thiazolidinone derivatives were designed and synthesized. The formation of the target compounds was confirmed by the elemental analyses, FT-IR, mass spectroscopy and 1H NMR spectroscopy. These derivatives were subjected to antibacterial and antioxidant activities. The antibacterial results revealed that these derivatives were selectively active against Gram-negative Pseudomonas aeruginosa bacteria. Also, these derivatives displayed a good DPPH radical scavenging effect. Drosophila melanogaster flies were used for evaluating the toxic impact of novel thiazolidinone derivatives.

scholarly journals Microwave-Assisted Synthesis and Biological Evaluation of Dihydropyrimidinone Derivatives as Anti-Inflammatory, Antibacterial, and Antifungal Agents

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Anjna Bhatewara ◽  
Srinivasa Rao Jetti ◽  
Tanuja Kadre ◽  
Pradeep Paliwal ◽  
Shubha Jain
Keyword(s):  
Antifungal Agents ◽  
Biological Evaluation ◽  
Microwave Assisted Synthesis ◽  
Antibacterial And Antifungal Activity ◽  
Guanidine Nitrate ◽  
Simple Protocol ◽  
Anti Inflammatory ◽  
Antibacterial And Antifungal ◽  
Synthesis And Biological Evaluation ◽  
Subsequent Addition

A simple protocol for the efficient preparation of aryl and heteroaryl substituted dihydropyrimidinone has been achieved via initial Knoevenagel, subsequent addition, and final cyclization of aldehyde, ethylcyanoacetate, and guanidine nitrate in the presence of piperidine as a catalyst in solvent-free under microwave irradiation. The synthesized compounds showed a good anti-inflammatory, antibacterial, and antifungal activity.

ROOM TEMPERATURE SYNTHESIS AND BIOLOGICAL EVALUATION OF SOME 2,5-DISUBSTITUTED-1,3,4-OXADIAZOLES

INDIAN DRUGS ◽  
2017 ◽  
Vol 54 (05) ◽  
pp. 11-15
Author(s):  
R. R Somani ◽  
◽  
P. K Chaskar ◽  
P. M. Patil
Keyword(s):  
Heterocyclic Compounds ◽  
Room Temperature ◽  
Antimicrobial Agents ◽  
Biological Evaluation ◽  
Spectroscopic Techniques ◽  
Temperature Synthesis ◽  
Room Temperature Synthesis ◽  
Synthetic Reactions ◽  
Resistant Strains ◽  
Synthesis And Biological Evaluation

One of the principles of green chemistry emphasises on minimisation of environmental and economic impacts by developing synthetic reactions at ambient temperature and pressure.The rise of resistant strains of microorganisms is an issue of regularly expanding seriousness. Therefore, the development of new antimicrobial agents will remain a challenge for chemists. we herein report room temperature synthesis of newer heterocyclic compounds belonging to 1,3,4-oxadiazole scaffold. Their structures were confirmed using various spectroscopic techniques. These compounds were evaluated for antifungal, antibacterial and antitubercular activities.

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