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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Asian Journal of Green Chemistry
- نوع مقاله: Journal Article
- کلمات کلیدی: Si-supported BrØnsted acids,Green reuasble catalysts,NaHSO3,Sulfonation,aromatic compounds
- چکیده:
- چکیده انگلیسی: A green protocol is described for sulfonation of aromatic compounds that has been accomplished using sodium bisulfite (NaHSO3) in the presence of reusable green heterogeneous SiO2/HClO4 and SiO2/KHSO4 (Silica-supported HClO4 and KHSO4 catalysts) under conventional and solvent-free microwave irradiation. The reactions afforded very good yields of products within 3 to 5 hour under conventional conditions. However, the reaction times in microwave-assisted protocol are drastically reduced to 3 to 5 minutes (from 3 to 5 hour under conventional conditions) followed by increasing product yields. Moreover, the developed silica-supported catalysts could be recycled for at least three to four times.
- انتشار مقاله: 25-05-1396
- نویسندگان: Touheeth Fatima,Yeike Hemanth Sriram,Mukka Satish Kumar,Marri Venkateswarlu,Chinna Rajanna Kamatala
- مشاهده