Bhaskar Boyapally, Raghavender Matta, Ramesh Naidu Bandameeda, Venkateswarlu Katta, Kumar K Shiva
Department of Chemistry, Osmania University, Hyderabad, 500 007, India.
Laboratory for Synthetic & Natural Products Chemistry, Department of Chemistry, Yogi Vemana University, Kadapa, 516005, India.
Environ Sci Pollut Res Int. 2023 Jun;30(28):71430-71438. doi: 10.1007/s11356-022-20407-7. Epub 2022 May 3.
A tremendous research has been appeared on Pd-catalyzed Suzuki-Miyaura cross-coupling (SMC) during the last four decades due to its high prominence in constructing biaryl motifs of several complexes as well as simple organic compounds of high biological and commercial significance. The use of organic solid waste-derived materials for SMC in benign solvents like water/aqueous media is a very good achievement in these cases. We report in this article the usability of water extract of Tamarindus indica seeds ash (WETS) as a renewable base and reaction medium for Pd(OAc)-catalyzed SMC reaction at room temperature (RT). The WETS has been characterized using powder XRD, EDAX, SEM, and FTIR analysis. Furthermore, this process is highly environmentally beneficial by the waste repurposing to prominent chemical transformation along with the advantages such as ambient condition and avoids non-renewable chemicals like volatile organic solvents, ligands, promoters, and bases. Based on these merits and the quick reactions with high yields of products, this method can attain the interest of the scientific community in exploring the waste-derived ashes to significant chemical transformations. Tamarindus indica seed ash extract for C-C coupling under added organics and volatile organic solvent-free conditions: a waste repurposing technique for Suzuki-Miyaura reaction.
在过去的四十年里，钯催化的铃木-宫浦交叉偶联反应（SMC）受到了广泛的研究，因为它在构建多种配合物的联芳基结构以及具有高生物学和商业价值的简单有机化合物方面具有很高的重要性。在水/水性介质等良性溶剂中使用有机固体废物衍生材料进行SMC是这些情况下的一项非常出色的成果。我们在本文中报道了罗望子种子灰分的水提取物（WETS）作为可再生碱和反应介质，用于在室温（RT）下钯（OAc）催化的SMC反应的适用性。已使用粉末XRD、EDAX、SEM和FTIR分析对WETS进行了表征。此外，该过程通过将废物重新用于重要的化学转化，对环境非常有益，同时还具有诸如环境条件温和等优点，并且避免了使用挥发性有机溶剂、配体、促进剂和碱等不可再生化学品。基于这些优点以及反应快速且产物收率高，该方法能够引起科学界对探索废物衍生灰分用于重要化学转化的兴趣。罗望子种子灰分提取物在添加有机物和无挥发性有机溶剂条件下的碳-碳偶联：一种用于铃木-宫浦反应的废物再利用技术。
