تصفح Central Laboratories Unit Research حسب المؤلف "Shkoor, Mohanad"
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l-Proline-Catalyzed Three-Component Reaction of 4-Chloro-3-formylcoumarin, Sodium Sulfide, and α-Halo Ketones: A Direct Approach to Thieno[3,2- c ]coumarins
Thotathil, Vandana; Al-Zoubi, Raed M.; Sawali, Mona; Su, Haw Lih; Shkoor, Mohanad ( Georg Thieme Verlag KG , 2023 , Other)A new protocol for the synthesis of thieno[3,2-c]coumarins is disclosed. In this method, a 3-formyl-2-oxo-2H-chromene-4-thiolate anion is generated in situ by treatment of 4-chloro-3-formylcoumarin with sodium sulfide. ... -
Synthesis of 5-oxo-5H-chromeno[3,4-c]pyridine-1-carbonitriles and features of their NMR spectra
Shkoor, Mohanad; Su, Haw‐Lih; Ahmed, Suzan; Hegazy, Sarah ( Wiley , 2019 , Article)Two different methods leading to 5-oxo-5H-chromeno[3,4-c]pyridine-1-carbonitriles were investigated. Reactions of 3-aminocrotonirile with substituted salicylaldehydes provided 5-oxo-5H-chromeno[3,4-c]pyridine-1-carbonitriles ...