Yaghubzadeh Mahtab, Alavinia Sedigheh, Ghorbani-Vaghei Ramin
Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan 6517838683 Iran
RSC Adv. 2023 Aug 17;13(35):24639-24648. doi: 10.1039/d3ra03058j. eCollection 2023 Aug 11.
The selective oxidation of active and inactive alcohol substrates is a highly versatile conversion that poses a challenge in controlling the functionality and adjustments on MOFs. On the other hand, it offers an attractive opportunity to expand their applications in designing the next generation of catalysts with improved performance. Herein, a novel iron-based MOF containing sulfonamide (MOF-BASU1) has been fabricated by the reaction of 1,3-benzene disulfonylchloride linker and FeCl·6HO. Based on the results, the active surface area of the synthesized MOF is large, which highlights its unique catalytic activity. Optimum conditions were reached after 0.5-2 h, with 15 mg loading of the synthesized MOF under optimal conditions. Furthermore, the turnover frequency was 18-77.6 h, which is comparable to values previously reported for this process. Overall, the high catalytic activity observed for MOF-BASU1 might be because of the obtained high surface area and the Lewis acidic Fe nodes. Furthermore, the MOF-BASU1 revealed a remarkable chemoselectivity for aldehydes in the presence of aliphatic alcohols. Overall, the high product yields, facile recovery of nanocatalysts, short reaction times, and broad substrate range make this process environmentally friendly, practical, and economically justified.
活性和非活性醇底物的选择性氧化是一种用途广泛的转化反应,在控制金属有机框架(MOF)的功能和调整方面具有挑战性。另一方面,它为扩展MOF在设计性能更优的下一代催化剂方面的应用提供了一个有吸引力的机会。在此,通过1,3 - 苯二磺酰氯连接体与FeCl₃·6H₂O反应制备了一种新型含磺酰胺的铁基金属有机框架(MOF - BASU1)。基于实验结果,合成的MOF具有较大的活性表面积,突出了其独特的催化活性。在0.5 - 2小时后达到最佳条件,在最佳条件下合成的MOF负载量为15毫克。此外,周转频率为18 - 77.6 h⁻¹,这与此前该过程报道的值相当。总体而言,观察到MOF - BASU1具有高催化活性可能是由于其获得的高表面积和路易斯酸性的铁节点。此外,MOF - BASU1在脂肪醇存在下对醛类显示出显著的化学选择性。总体而言,高产物收率、纳米催化剂易于回收、反应时间短以及底物范围广使得该过程具有环境友好、实用且经济合理的特点。