Synthesis of diorganyl selenides via diselenide cleavage and bioactivity.
Journal name: World Journal of Pharmaceutical Research
Original article title: Efficient synthesis of novel diorganyl selenides via cleavage of se–se bond of diselenides by rucl3/zn and screened for their biological efficacy
The WJPR includes peer-reviewed publications such as scientific research papers, reports, review articles, company news, thesis reports and case studies in areas of Biology, Pharmaceutical industries and Chemical technology while incorporating ancient fields of knowledge such combining Ayurveda with scientific data.
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Ashok B, Kumar Naik K H, Avinash P and Nagaraja Naik
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Full text available for: Efficient synthesis of novel diorganyl selenides via cleavage of se–se bond of diselenides by rucl3/zn and screened for their biological efficacy
Source type: An International Peer Reviewed Journal for Pharmaceutical and Medical and Scientific Research
Copyright (license): WJPR: All rights reserved
Summary of article contents:
Introduction
The study investigates the synthesis of novel diorganyl diselenides through the cleavage of Se–Se bonds in diselenides using a RuCl3/Zn catalytic system. These compounds are characterized and evaluated for their biological efficacy in terms of antioxidant and antibacterial activities. Organic selenides play a crucial role in various biochemical processes and therapeutic applications, drawing attention for their potential biological properties, including antioxidant and anticancer activities. The research addresses the challenges in synthesizing unsymmetrical diorganyl selenides and proposes efficient catalytic methods for their development.
Efficient Cleavage of Se–Se Bonds
The research highlights a novel catalytic reaction that efficiently cleaves the Se–Se bonds in diaryl diselenides. The reaction involves using RuCl3 in combination with zinc as a reducing agent, progressing towards the synthesis of 2-(benzylselanyl)-N-phenylacetamide. This method aims to overcome the limitations of existing synthetic approaches that often require harsh conditions and may not accommodate more complex substrates. The authors emphasize that to their knowledge, this catalytic process involving 2,2'-diselanediylbis(N-phenylacetamide) with organic halides had not been previously reported, marking a notable advancement in the field.
Antioxidant Activity Evaluation
The antioxidant efficacy of the synthesized compounds was assessed through two key tests: DPPH radical scavenging and microsomal lipid peroxidation inhibition assays. The results indicated that most of the synthesized compounds demonstrated significant antioxidant activities, attributed to the electron-donating capability of selenium in their structure. Notably, compounds containing electron-donating substituents, such as methoxy and methyl groups, exhibited enhanced activity against the DPPH radical, suggesting the potential of these compounds as effective antioxidants. The investigation reveals that compound 4e, with multiple electron-donating groups, exhibited particularly potent antioxidant properties.
Antibacterial Activity Assessment
In addition to antioxidant tests, the research also measured the antibacterial activity of the synthesized compounds against several bacterial strains, including Escherichia coli and Ralstonia solanacearum. The study employed the agar well diffusion method to determine the effectiveness of the compounds. Some compounds showed promising antibacterial effects, with varying degrees of inhibition based on their substituents. The presence of electron-withdrawing groups in certain compounds was found to diminish their antibacterial efficacy, while compounds with strong electron-donating groups exhibited increased bioactivity, highlighting the structure-activity relationship in this context.
Conclusion
The findings of this study underscore the potential of diorganyl selenides synthesized via RuCl3/Zn catalysis for both antioxidant and antibacterial applications. The effective synthesis and characterization of these compounds contribute valuable insights into the development of organoselenium compounds. Particularly, compounds 4e and 4l showed exceptional antioxidant activity, while compounds 4g and 4h displayed notable antibacterial properties. This research not only adds to the existing literature on the synthesis of organoselenium compounds but also paves the way for future investigation into their therapeutic applications.
FAQ section (important questions/answers):
What is the main focus of the study reported?
The study focuses on the efficient synthesis of novel diorganyl selenides via the cleavage of Se–Se bonds of diselenides using RuCl3/Zn and evaluating their biological efficacy.
What synthetic method is employed for creating diorganyl selenides?
The researchers utilize a RuCl3-catalyzed cross-coupling reaction of diorganyl diselenides with benzyl halides in the presence of zinc to synthesize the target compounds.
What biological activities were evaluated for the synthesized compounds?
The synthesized compounds were evaluated for their in vitro antioxidant and antibacterial activities using various assays to determine their efficacy.
How was the antioxidant activity assessed in this study?
Antioxidant activity was assessed using the DPPH radical scavenging assay and the inhibition of microsomal lipid peroxidation (LPO) assay, comparing results to known standards.
What were the results regarding the antioxidant capabilities of the compounds?
Most of the synthesized compounds exhibited good to high antioxidant activity, with some outperforming standard antioxidants like BHA, particularly those with favorable substituents.
Which bacterial strains were targeted in the antibacterial activity evaluation?
The antibacterial activity of the synthesized compounds was evaluated against Ralstonia solanacearum, Escherichia coli, Klebsiella pneumonia, Lactobacillus, and Bacillus subtilis.
Glossary definitions and references:
Scientific and Ayurvedic Glossary list for “Synthesis of diorganyl selenides via diselenide cleavage and bioactivity.”. This list explains important keywords that occur in this article and links it to the glossary for a better understanding of that concept in the context of Ayurveda and other topics.
1) Activity:
The term 'activity' in the context of this research refers to the biological efficacy of compounds tested, specifically their antioxidant and antibacterial capabilities. The outcomes of such activity tests indicate the potential medicinal value of synthesized compounds, such as their ability to inhibit harmful bacteria or to scavenge free radicals.
2) Antibiotic (Antibacterial):
The word 'antibacterial' denotes compounds that exhibit the ability to inhibit or kill bacterial growth. This research assesses the antibacterial properties of synthesized diorganyl selenides against specific microbial strains, highlighting their relevance in the development of new therapeutic agents that can combat bacterial infections effectively.
3) Table:
In the manuscript, 'Table' refers to the structured data presentation, summarizing results such as synthesized compounds' characteristics, biological activities, and comparisons with standards. Tables serve as a concise way to organize complex information, allowing readers to quickly grasp findings and draw conclusions regarding the efficacy of the tested compounds.
4) India:
India is the geographical context of the research, specifically indicating where the study's institutions and researchers are located. The country serves as a significant site for pharmaceutical research, contributing to the development of novel compounds with potential therapeutic applications in both local and global contexts.
5) Mysore:
Mysore, a city in India, is notable in this study as the location of the University of Mysore, where some researchers are based. The university is a critical center for chemical research and education, particularly in the synthesis of compounds relevant to healthcare and medicinal chemistry.
6) Reason:
The term 'reason' conveys the motivation or justification for conducting the research. In this context, the reason encompasses the necessity for new synthetic methods for organoselenium compounds due to their biological activity, aiming to overcome challenges in existing methodologies while exploring their potential in medicinal chemistry.
7) Water:
Water is mentioned in the context of the experimental methodology, used as a solvent for washing and separating organic phases after chemical reactions. Its role in laboratory procedures emphasizes the importance of proper solvent management in synthesizing and isolating chemical compounds in research.
8) Science (Scientific):
Science signifies the overarching discipline involving systematic study and experimentation. In the context of this research, science pertains to the study of chemistry and pharmacology, involving the synthesis of novel compounds and analyzing their biological activities, which contribute to advancements in medical and pharmaceutical knowledge.
9) Male:
The term 'male' specifically refers to the gender of the rats used in the biological assays. Utilizing adult male Wistar rats for testing is relevant in biological research to establish a consistent metabolic profile for evaluating antioxidant efficacy, ensuring that results are not influenced by female hormonal fluctuations.
10) Transformation (Transform, Transforming):
Transformation in this study refers to the chemical changes that occur during the synthesis and reactions of organoselenium compounds. It encompasses the conversion of starting materials into desired products through catalytic processes, indicating the complexity and importance of understanding such changes in developing novel pharmaceuticals.
11) Bailhongal:
Bailhongal is mentioned as the location of one of the collaborating institutions in the study. The geographical specificity highlights the collaborative nature of the research environment in India, pointing towards regional contributions to scientific advancements in chemistry and pharmaceutical research.
12) Discussion:
The discussion section provides a comprehensive analysis of the study's results, addressing the implications, comparisons with previous research, and drawing conclusions from the findings. It plays a crucial role in contextualizing the data and suggesting future directions for research in the field.
13) Knowledge:
Knowledge in this context refers to the understanding gained from the research outcomes, including insights into the synthesis and biological activities of organoselenium compounds. This knowledge is valuable not only for scientific communities but also for pharmaceutical applications targeting antioxidant and antibacterial properties.
14) Commerce:
Commerce indicates the economic aspect associated with the research findings, particularly in relation to drug development. The synthesis of bioactive compounds can have implications for the pharmaceutical industry, emphasizing the bridge between scientific research and practical applications in commercial settings.
15) Species:
The term 'species' relates to the specific microorganisms tested for antibacterial activity. Identifying and testing against various bacterial species allow for a clearer understanding of a compound's efficacy and potential applications as new therapeutic agents in treating bacterial infections.
16) Account:
Account refers to the detailed systematic record or report of the research findings, methodologies, and analyses presented in the paper. Properly documenting results ensures transparency in research and enables other scientists to replicate, verify, or build upon the findings.
17) Filling (Filled):
Filled indicates a process within the experimental setup, specifically referring to the action of introducing test compounds into wells during the antibacterial assays. It captures the procedural aspect of conducting experiments, highlighting the hands-on nature of biological research methodology.
18) Kumar:
Kumar is a common Indian surname and also refers to one of the authors involved in the research. It signifies the collaborative effort of multiple scholars and institutions in the study, showcasing the collective contribution of experts in the field of chemistry and pharmacology.
19) Study (Studying):
The word study denotes the organized research effort regarding the synthesis, characterization, and bioactivity of compounds described in the manuscript. It encapsulates the structured investigation into novel chemical entities with potential health-related applications, reflecting the scientific process.
20) Food:
Food is relevant in the context of discussing organoselenium compounds which have dietary applications, as some exhibit antioxidant properties that are beneficial for health. The potential protective effects of these compounds in food supplements signify their significance in nutritional research and health benefits.
21) Drug:
Drug signifies the ultimate goal of the research, which is to develop new pharmaceutical compounds that can be used in medical treatments. The exploration of novel organoselenium compounds represents a step towards discovering effective drugs with specific biological activities, particularly in combating diseases.
Other Science Concepts:
Discover the significance of concepts within the article: ‘Synthesis of diorganyl selenides via diselenide cleavage and bioactivity.’. Further sources in the context of Science might help you critically compare this page with similair documents:
Biological efficacy, Antibacterial activity, Antioxidant activity, Oxidative stress, Zone of inhibition, Pharmaceutical Research, Synthetic analogues, DPPH Radical Scavenging Assay, In vitro assay, Radical scavenging ability, Electron withdrawing group, Synthetic method, Electron donating group.