Succinimide-N-sulfonic Acid as a Recyclable Brönsted Acid Catalyst for Synthesis of Pyrano[4,3-b]pyran Derivatives by Using Solar Energy Under Solvent-Free Conditions |
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| Authors: | Nader Ghaffari Khaligh Sharifah Bee Abd Hamid Salam J J Titinchi |
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| Affiliation: | 1. Nanotechnology &2. Catalysis Research Centre, NANOCAT, University Malaya, Kuala Lumpur, Malaysia;3. Department of Chemistry, University of the Western Cape, Cape Town, South Africa |
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| Abstract: | Succinimide-N-sulfonic acid as an efficient Brönsted acid catalyzed the synthesis of pyrano4,3-b]pyrans by using solar energy as a green source of energy under solvent-free conditions. This method has the advantages of high yield, short reaction time, and clean and simple methodology. The catalyst could be recycled without significant loss of activity. |
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| Keywords: | Brönsted acid one-pot three-component reaction pyrano[4 3-b]pyran solar energy |
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