Mechanochemistry, a branch of chemistry that involves the application of mechanical energy to induce chemical reactions, has garnered significant attention for its unique approach to chemical synthesis and materials processing. This review explores the fundamental principles of mechanochemistry, including the impact of mechanical forces on crystalline structures and the resultant chemical transformations. Recent advancements highlight the field’s potential in reducing reliance on hazardous solvents, improving energy efficiency, and supporting sustainable practices. Mechanochemistry’s applications extend to recycling and resource recovery, particularly in the context of valuable metals and materials, aligning with the principles of green chemistry and the circular economy. Despite its benefits, the field faces challenges related to scalability, process control, and material limitations. Future directions include integrating advanced technologies, exploring new applications, and enhancing fundamental understanding to address these challenges. Mechanochemistry stands as a transformative and evolving area of research with significant implications for scientific progress and industrial applications, promising to drive innovation and sustainability in various sectors.

Chemoinformatics is a rapidly advancing field that integrates chemistry, computer science, and data analysis to enhance the study and application of chemical systems. This interdisciplinary approach leverages computational tools and large datasets to drive innovation in various chemical disciplines, including drug discovery, materials science, and environmental chemistry. Recent advancements in artificial intelligence (AI) and machine learning (ML) have significantly improved the ability to analyze complex datasets, predict molecular properties, and design new compounds. Additionally, the expansion of open-access databases and collaborative platforms has facilitated broader access to chemical data and fostered global research collaboration. Sophisticated molecular modeling techniques, such as multi-scale modeling and free energy calculations, have enhanced the accuracy of predictions, while big data analytics has enabled the extraction of valuable insights from vast datasets. Emerging technologies, including quantum computing, hold promise for further revolutionizing the field by offering new capabilities for simulating and optimizing chemical processes. Despite these advancements, chemoinformatics faces challenges related to data integrity, computational demands, and interdisciplinary collaboration. Addressing these challenges is crucial for the continued growth and effectiveness of chemoinformatics. Overall, the field is poised to play a pivotal role in advancing chemical research and developing innovative solutions to address global challenges. Scientific contribution This article highlights the growing impact of chemoinformatics in modern chemistry by integrating computational tools with molecular science to enhance data-driven discovery. It explores advancements in machine learning, artificial intelligence, and big data analytics, which improve molecular property predictions and accelerate chemical innovations. The study also discusses key applications in drug design and materials science, demonstrating how chemoinformatics drives efficiency and sustainability in research. Additionally, it outlines future challenges and opportunities, emphasizing the need for improved algorithms, data standardization, and interdisciplinary collaboration. This work contributes to the evolving role of chemoinformatics as a crucial pillar of modern chemical research.

Cyclodehydration-condensation of hippuric acid and arylaldehydes have been carried out using a 1:1 mixture of Al₂O₃-H₃BO₃ in the presence of stoichiometric quantity of acetic anhydride to give the target compound in good yield. This procedure can be used to synthesize the 4-alkylidene analogs also.

Bioorthogonal chemistry has emerged as a pivotal field in molecular science, offering transformative tools for applications in drug discovery, imaging, and molecular biology. This review provides a comprehensive analysis of recent advancements in bioorthogonal chemistry, emphasizing key innovations, practical applications, and future research directions. We explore state-of-the-art bioorthogonal reactions, including Staudinger ligation, strain-promoted azide-alkyne cycloaddition (SPAAC), and tetrazine ligation, detailing their mechanisms, advantages, and limitations. The review highlights significant innovations such as novel fluorogenic probes, improved catalysts, and enhanced reaction conditions that have expanded the utility and efficiency of these reactions. Practical applications are examined, showing how these advances have revolutionized fields like live-cell imaging, targeted drug delivery, and molecular labeling. Looking to the future, we discuss emerging trends and potential research avenues, including the integration of bioorthogonal chemistry with other advanced technologies and the development of new reaction methodologies. This review provides a detailed overview of the current state of bioorthogonal chemistry and outlines its future potential, serving as a valuable resource for researchers and practitioners in the field.

Soft drinks have been reported to contain some toxic substance and other unwanted material beyond the acceptable limits in some countries including Nepal. Therefore, the main objective of this study was to access the quality and characteristics of selected soft drinks found in Birendranagar, Surkhet. Fifteen samples of marketed soft drinks were collected from the market. Qualitative test for the presence of reducing sugar, phosphates, alcohol and carbon dioxide in the samples were carried out. Quantitative test were also done for hardness, pH, iron content ammonia, chloride and also density measurement for ensuring the quality of available soft drinks. The presence of high sugar content in the sample and also the acidity of sample also indicate the presence of contaminants in the available sample. The pH value of Coca-Cola (2.5), highly acidic in nature, total hardness in Mountain Dew sample is found to be 350 mg/lit whereas for Pepsi is 76 mg/lit. Therefore, the quality of marketed soft drinks must be regulated by the regulatory bodies.