Regio‐ and stereoselective synthesis of 1‐benzopyrano[2,3‐b]pyrrolo[2,3‐d]pyridines: A microwave‐accelerated intramolecular [3+2] cycloaddition reaction of azomethine ylide |
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| Authors: | Sourav Maiti T M Lakshmykanth Suman Kalyan Panja Ranjan Mukhopadhyay Ayan Datta Chandrakanta Bandyopadhyay |
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| Institution: | 1. Department of Chemistry, R. K. Mission Vivekananda Centenary College, Rahara, Kolkata 700 118, West Bengal, India;2. School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram, Kerala, India;3. Chemistry Division (CSIR), Indian Institute of Chemical Biology, Jadavpur 700 032, West Bengal, India |
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| Abstract: | Regio‐ and stereoselective syntheses of tetracyclic compounds having chromone, pyrrolidine, and piperidine rings have been accomplished by an intramolecular 3+2] cycloaddition reaction involving azomethine ylide. The reactions were carried out thermally as well as by irradiation with microwave. The latter process accelerates the reaction. The selectivities were investigated by density functional theory computation. J. Heterocyclic Chem., (2011). |
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