Ca(II)-catalyzed diastereoselective formal [4+2] annulation of a 3-component solvent-free povarov reaction |
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| Authors: | P Md Khaja Mohinuddin Ravikrishna Dada Abdulrahman I Almansour Natarajan Arumugam Srinivasarao Yaragorla |
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| Institution: | 1. School of Chemistry, University of Hyderabad, P.O. Central University, Hyderabad 500046, Telangana, India;2. Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia |
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| Abstract: | Diastereoselective, three-component annulation reaction involving glyoxals, anilines and dienophiles is developed under calcium catalysis. When indene is the dienophile, the reaction gave excellent diastereoselectivity to yield tetrahydro-indenoquinolines, these were further aromatized to get indenoquinolines in one-pot. Aryl acetylenes are used as dienophiles to get 2-acyl quinolines in good yields. |
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| Keywords: | Annulation reaction Diastereoselective Calcium catalysis Povarov reaction |
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