Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Renewable concentrated solar-radiation (CSR) offered a promising en route for the development of practical, highly efficient, scalable, catalyst free and solvent-free clean process leading to the synthesis of functionalized benzimidazoles.Developed protocol has a very good substrate scope, involves mild reaction conditions and products obtained in good to excellent yields.Method presented the observations in which light alone could affect the remarkable changes with more than 85% energy saving and 75% less reaction time in listed organic transformations.
The electrical conduction processes in high-Tc superconductor (HTS) pure as well as praseodymium (Pr)-doped YBCO had been observed under MRF excitations at room temperature. The high-Tc superconductor Y1- xPrxBa2Cu3O7 for x = 0.0 and x = 0.1 were synthesized using conventional solid state reaction method. They were employed to study the I-V characteristics of these samples under MRF-excitations. The I-V characteristics of these samples are found to be linear in nature. The Hall potentials (VH) have also been recorded and employed to compute the various physical parameters. The doping process seems to suppress the Hall potentials and influencing all these physical parameters.
AbstractThe present methodology explored the effectiveness and versatility of deep eutectic solvent with ultrasonic energy as an eco-friendly protocol for the synthesis of bisthioglycolic acid derivatives. Bisthioglycolic moiety holds its role as a potent scaffold in sulfur-containing drugs. The presented strategy offers significant advantages such as green catalyst as well as solvent, excellent yield, short reaction time, and simple reaction workup. This methodology shows a wide range of substrate scope that contain both electron-donating as well as electron-withdrawing groups.KEYWORDS: Ultrasonic energygreen chemistrybisthioglycolic aciddeep eutectic solventcarbon–sulfur bond formation AcknowledgmentRK & JKR are thankful to SERB New Delhi for the research grant (TAR/2022/00520). PS gratefully acknowledges the National Research Foundation (SA) for a Competitive grant for rated researchers (Grant Number: SRUG2204092857). The authors are also thankful to the IKGPTU, Kapurthala for providing all the necessary research facilities.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by National Research Foundation (SA): [Grant Number SRUG2204092857]; Science and Engineering Research Board: [Grant Number TAR/2022/00520].
Abstract A very simple, green method for the efficient oxidation of thiols to disulfides catalyzed by ascorbic acid was found to be practical, inexpensive, and reusable and has a simple work-up procedure. This oxidation is suitable for a variety of thiols at room temperature and proceeds cleanly in short reaction time and with high yields.
AbstractDespite ongoing research in the field of GHRM, green practices and environmental commitment, there is a need to investigate these dynamics in diverse organizational contexts, such as the hospitality industry. Within this industry, employee behavior is a major factor in determining environmental commitment. As a response, this study investigates the connection between GHRM practices and pro-environmental (task-related and proactive Pro-EB) among hospitality employees, to enhance their environmental dedication. Drawing on empirical evidence from India, the study supports the Abilities, Motivation, and Opportunities theory and social exchange theory framework to understand better the GHRM mechanism with employee pro-EB and environmental commitment within the hospitality industry. The developed hypothesis and conceptual model used the structural equation modelling technique to test this mechanism. The study findings demonstrated that GHRM promotes pro-EB among its employees to improve environmental commitment. This study employs a different approach to GHRM, considering the influence of employees' proactive and task-related pro-EB to enhance their environmental commitment in the hospitality sector.
The main aim of the study was to synthesize nano zerovalent iron (NZVI) modified with graphene oxide (GO) and chitosan (CS) in the form of a magnetic ternary nanocomposite. Three ternary nanocomposites i.e. GO-CS-NZVI, GO-NZVI-CS and CS-NZVI-GO were synthesized to further understand the possible binding tendencies among these components in the final ternary composite. These ternary composites were characterized by FTIR, SEM and EDS techniques to understand the effect of mutual interaction of the three components during synthesis on the overall structure and morphology of the ternary composite. Furthermore, these ternary nanocomposites were employed in the removal of Congo red (an anionic, carcinogenic, azo dye) and also a mixture of dyes Congo red and Rhodamine B (a cationic, carcinogenic dye). A maximum of 98% removal of Congo red and 98.7% removal from the mixture of dyes was observed with ternary nanocomposite GO-CS-NZVI within 30 min. Equilibrium adsorption efficiency (qe) was calculated to be 48.15 and 79 mg/g for Congo red and mixture of dyes (Congo red & Rhodamine B), respectively. A comparative analysis of bare NZVI with these ternary nanocomposites was also conducted to further understand the effect of modification of NZVI with graphene oxide and chitosan on the structure, morphology and its dye removal efficiency.
Here, we have reported a novel deep eutectic solvent (DES) with tremendous activity for the synthesis of dihydropyridines. DESs have played a trio role in the reaction. It acts as a green catalyst, solvent, and in-situ substrate in this chemical reaction. This method offers various advantages such as metal-free catalysis, green solvent, high yields of the products, and short reaction time.
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