Synthesis and application of modified silica sulfuric acid as a solid acid heterogeneous catalyst in Michael addition reactions |
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| Authors: | Mohammad Ali Zolfigol Hojat Veisi Farajollah Mohanazadeh Alireza Sedrpoushan |
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| Affiliation: | 1. Department of Organic Chemistry, Faculty of Chemistry, Bu‐Ali Sina University, Hamedan 6517838683, Iran;2. Department of Chemistry, Payame Noor University (PNU), Iran;3. Chemical Industries Department, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran |
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| Abstract: | ![]()
Modified silica sulfuric acid (MSSA) as a new type of silica sulfuric acid was prepared and effectively used in the conjugate addition of indole, pyrrole, and thiols with Michael acceptors under mild conditions at room temperature. Also, MSSA was used as a catalyst for the synthesis of 1,1,3‐tri‐indolyl compounds in good to excellent yield at room temperature. J. Heterocyclic Chem., (2011). |
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