Ultrasound Assisted One-Pot Three-Component Reaction for Synthesis of Novel Functionalized 4-Thioxo-Pyrano[2,3-c]Pyrazoles, 5-Thioxo-Pyrano[2,3-d]Pyrimidines and 5-Thioxo-Pyrido[2,3-d]Pyrimidines Catalyzed by Triethylamine

References

• S.N. Maddila, S. Maddila, M. Khumalo, S.V.H.S. Bhaskaruni, and S.B. Jonnalagadda, “An Eco-Friendly Approach for Synthesis of Novel Substituted 4H-Chromenes in Aqueous Ethanol under Ultrasonication with 94% Atom Economy,” Journal of Molecular Structure 1185, no. 2019 (2019): 357–60.
   Google Scholar
• S. Maddila, K.K. Gangu, S.N. Maddila, and S.B. Jonnalagadda, “A Facile, Efficient, and Sustainable Chitosan/CaHAp Catalyst and One-Pot Synthesis of Novel 2,6-Diaminopyran-3, 5-Dicarbonitriles,” Molecular Diversity 21, no. 1 (2017): 247–55.
   PubMed Web of Science ®Google Scholar
• S. Shabalala, S. Maddila, W.E. Van Zyl, and S.B. Jonnalagadda, “Innovative Efficient Method for the Synthesis of 1,4-Dihydropyridines Using Y2O3 Loaded on ZrO2 as Catalyst,” Industrial & Engineering Chemistry Research 56, no. 40 (2017): 11372–9.
   Web of Science ®Google Scholar
• V. Moodley, S. Maddila, S.B. Jonnalagadda, and W.E. van Zyl, “Retracted Article: Synthesis of Triazolidine-3-One Derivatives through the Nanocellulose/Hydroxyapatite-Catalyzed Reaction of Aldehydes and Semicarbazide,” New Journal of Chemistry 41, no. 14 (2017): 6455–63.
   Web of Science ®Google Scholar
• S. Shabalala, S. Maddila, W.E. van Zyl, and S.B. Jonnalagadda, “A Facile, Efficacious and Reusable Sm2O3/ZrO2 Catalyst for the Novel Synthesis of Functionalized 1,4-Dihydropyridine Derivatives,” Catalysis Communications 79 (2016): 21–5.
   Web of Science ®Google Scholar
• N. Shabalala, S. Maddila, and S.B. Jonnalagadda, “Catalyst-Free, One-Pot, Four-Component Green Synthesis of Functionalized 1-(2-Fluorophenyl)-1,4-Dihydropyridines under Ultrasound Irradiation,” New Journal of Chemistry 40, no. 6 (2016): 5107–12.
   Web of Science ®Google Scholar
• Enrique Ruiz, Hortensia Rodríguez, Julieta Coro, Esperanza Salfrán, Margarita Suárez, Roberto Martínez-Alvarez, and Nazario Martín, “Ultrasound-Assisted One-Pot, Four Component Synthesis of 4-Aryl-3,4-Dihydropyridone Derivatives,” Ultrasonics Sonochemistry 18, no. 1 (2011): 32–6.
   PubMed Web of Science ®Google Scholar
• J. Safaei-Ghomi, M. Fadaeian, and A. Hatami, “A Convenient Method for the Preparation of 2-Aminobenzophenone Derivatives under Ultrasonic Irradiation,” Turkish Journal of Chemistry 31, no. 1 (2007): 89–95.
   Web of Science ®Google Scholar
• G.A. Heropoulos, S. Georgakopoulos, and B.R. Steele, “High Intensity Ultrasound-Assisted Reduction of Sterically Demanding Nitroaromatics,” Tetrahedron Letters 46, no. 14 (2005): 2469–73. ‏
   Web of Science ®Google Scholar
• J.L. Luche, Synthetic Organic Sonochemistry. (Boston, MA: Springer, 1998), 263–300.
   Google Scholar
• H.A. Stefani, R. Cella, F.A. Dorr, C.M.P. de Pereira, F.P. Gomes, and G. Zeni, “Ultrasound-Assisted Synthesis of Functionalized Arylacetylenes,” Tetrahedron Letters 46, no. 12 (2005): 2001–3. ‏
   Web of Science ®Google Scholar
• S. Maddila, R. Pagadala, and S.B. Jonnalagadda, “1,2,4-Triazoles: A Review of Synthetic Approaches and the Biological Activity,” Letters in Organic Chemistry 10, no. 10 (2013): 693–714.
   Web of Science ®Google Scholar
• Chamseddine Derabli, Imen Boualia, Ahmed B. Abdelwahab, Raouf Boulcina, Chawki Bensouici, Gilbert Kirsch, and Abdelmadjid Debache, ““Corrigendum to” a Cascade Synthesis, in Vitro Cholinesterases Inhibitory Activity and Docking Studies of Novel Tacrine-Pyranopyrazole Derivatives,” Bioorganic & Medicinal Chemistry Letters 28, no. 14 (2018): 2481–4.
   PubMed Web of Science ®Google Scholar
• R.Z. Batran, D.H. Dawood, S.A. El-Seginy, T.J. Maher, K.S. Gugnani, and A.N. Rondon, “Coumarinyl Pyranopyrimidines as New Neuropeptide S Receptor Antagonists; Design, Synthesis, Homology and Molecular Docking,” Bioorganic Chemistry 75 (2017): 274–90.
   PubMed Web of Science ®Google Scholar
• G. Jubete, R.P. de la Bellacasa, R. Estrada-Tejedor, J. Teixidó, and J.I. Borrell, “Pyrido[2,3-d]Pyrimidin-7(8H)-Ones: Synthesis and Biomedical Applications,” Molecules 24, no. 22 (2019): 4161.
   PubMed Web of Science ®Google Scholar
• M.J. Climent, A. Corma, and S. Iborra, “Homogeneous and Heterogeneous Catalysts for Multicomponent Reactions,” RSC Advances 2, no. 1 (2012): 16–58.
   Web of Science ®Google Scholar
• S. Hanessian, J. Szychowski, and J.P. Maianti, “Synthesis and Comparative Antibacterial Activity of Verdamicin C2 and C2a. A New Oxidation of Primary Allylic Azides in Dihydro[2H]Pyrans,” Organic Letters 11, no. 2 (2009): 429–32.
   PubMed Web of Science ®Google Scholar
• S.M. Hasan, M.M. Alam, Asif Husain, Suruchi Khanna, Mymoona Akhtar, and M.S. Zaman, “Synthesis of 6-Aminomethyl Derivatives of Benzopyran-4-One with Dual Biological Properties: Anti-Inflammatory-Analgesic and Antimicrobial,” European Journal of Medicinal Chemistry 44, no. 12 (2009): 4896–903.
   PubMed Web of Science ®Google Scholar
• M. Saleem, M. Nazir, M.S. Ali, H. Hussain, Y.S. Lee, N. Riaz, and A. Jabbar, “Antimicrobial Natural Products: An Update on Future Antibiotic Drug Candidates,” Natural Product Reports 27, no. 2 (2010): 238–54.
   PubMed Web of Science ®Google Scholar
• T.E. Ali, and M.A. Assiri, “A Convenient One-Pot Synthesis of Novel Functionalized Thiophene, Thieno[2,3-b]Thiophene, Thiopyran, and Thiopyrano[2,3-b]Thiopyran Bearing Phosphonate Groups,” Journal of Sulfur Chemistry 42, no. 5 (2021): 490–8.
   Web of Science ®Google Scholar
• T.E. Ali, M.A. Assiri, H.M. El-Shaaer, A.M. Fouda, M.M. Hassan, and N.M. Hassanin, “Reaction of 2-Imino-2H-Chromene-3-Carboxamide with Phosphorus Halides: synthesis of Some Novel Chromeno[2,3-d][1,3,2]Diazaphosphinines and Chromeno[4,3-c][1,2] Azaphosphole and Their Antioxidant and Cytotoxicity Properties,” Heterocycles 98, no. 5 (2019): 681–92.
   Web of Science ®Google Scholar
• T.E. Ali, M.A. Assiri, N.M. Hassanin, I.S. Yahia, and M.S.A. Hussien, “A Convenient Synthetic Route of Diethyl (4‐Oxo‐Chromeno[2,3‐d]Pyrimidin‐2(5)‐yl) Phosphonates,” Journal of Heterocyclic Chemistry 56, no. 5 (2019): 1684–6.
   Web of Science ®Google Scholar
• T.E. Ali, M.A. Assiri, M.A. Ibrahim, and I.S. Yahia, “Nucleophilic Reactivity of a Novel 3-Chloro-3-(4,9-Dimethoxy5-Oxo-5H-Furo[3,2-g]Chromen-6-yl)Prop-2-Enal,” Russian Journal of Organic Chemistry 56, no. 5 (2020): 845–55.
   Web of Science ®Google Scholar
• T.E. Ali, D.A. Bakhotmah, and M.A. Assiri, “Synthesis of Some New Functionalized Pyrano[2,3-c]Pyrazoles and Pyrazolo[4′,3′:5,6]Pyrano[2,3-d]Pyrimidines Bearing a Chromone Ring as Antioxidant Agents,” Synthetic Communications 50, no. 21 (2020): 3314–25.
   Web of Science ®Google Scholar
• H. Firouzabadi, N. Iranpoor, and M. Gholinejad, “2-Aminophenyl Diphenylphosphinite as a New Ligand for Heterogeneous Palladium-Catalyzed Heck–Mizoroki Reactions in Water in the Absence of Any Organic co-Solvent,” Tetrahedron 65, no. 34 (2009): 7079–84.
   Web of Science ®Google Scholar
• G. Wang, M. Chen, J. Qiu, Z. Xie, and A. Cao, “Synthesis, In Vitro α-Glucosidase Inhibitory Activity and Docking Studies of Novel Chromone-Isatin Derivatives,” Bioorganic & Medicinal Chemistry Letters 28, no. 2 (2018): 113–6.
   PubMed Web of Science ®Google Scholar
• M. Abd. El Aleem, and A.A. El-Remaily, “Synthesis of Pyranopyrazoles Using Magnetic Fe3O4 Nanoparticles as Efficient and Reusable Catalyst,” Tetrahedron 70, no. 18 (2014): 2971–5.
   Web of Science ®Google Scholar
• V.Y. Sosnovskikh, and I.R.A. Rgashev, “Uncatalyzed Addition of Indoles and N-Methyl-Pyrrole to 3-Formylchromones: synthesis of (Chromon-3-yl)Bis(Indol-3-yl)Methanes and E-2-Hydroxy-3-(1-Methylpyrrol-2-Ylmethylene)Chroman-4-Ones under Solvent-Free Conditions,” Tetrahedron Letters 48, no. 42 (2007): 7436–9.
   Web of Science ®Google Scholar
• A.P. Marjani, J. Khalafy, F.M. Arlan, and E. Eyni, “A Simple Protocol for the Green Synthesis of a New Series of Pyrimido[4,5-b][1,6]Naphthyridines in the Presence of Silver Nanoparticles (AgNPs),” Arkivoc V (2019): 1–9.
   PubMed Web of Science ®Google Scholar
• A. Oma, and K. Ablajan, “Efficient One-Pot Catalyst-Free Synthesis of Novel Coumarin-Spiro [Indoline-3,4'-Pyran] Conjugates via Three-Component Domino Reaction in Aqueous Medium,” Green Chemistry Letters and Reviews 12, no. 1 (2019): 1–8. ‏
   Web of Science ®Google Scholar