An Efficient Catalytic Synthesis of 1,8-Dioxo-octahydroxanthene Derivatives with Anti-oxidant Scanning
Khatab, T., El-Mekabaty, A., M.Gamala, Z., Kandil, E. (2018). An Efficient Catalytic Synthesis of 1,8-Dioxo-octahydroxanthene Derivatives with Anti-oxidant Scanning. EKB Journal Management System, 61(4), 661-666. doi: 10.21608/ejchem.2018.3381.1285
Tamer K Khatab; Ahmed El-Mekabaty; Zeinab M.Gamala; Ezz Kandil. "An Efficient Catalytic Synthesis of 1,8-Dioxo-octahydroxanthene Derivatives with Anti-oxidant Scanning". EKB Journal Management System, 61, 4, 2018, 661-666. doi: 10.21608/ejchem.2018.3381.1285
Khatab, T., El-Mekabaty, A., M.Gamala, Z., Kandil, E. (2018). 'An Efficient Catalytic Synthesis of 1,8-Dioxo-octahydroxanthene Derivatives with Anti-oxidant Scanning', EKB Journal Management System, 61(4), pp. 661-666. doi: 10.21608/ejchem.2018.3381.1285
Khatab, T., El-Mekabaty, A., M.Gamala, Z., Kandil, E. An Efficient Catalytic Synthesis of 1,8-Dioxo-octahydroxanthene Derivatives with Anti-oxidant Scanning. EKB Journal Management System, 2018; 61(4): 661-666. doi: 10.21608/ejchem.2018.3381.1285

An Efficient Catalytic Synthesis of 1,8-Dioxo-octahydroxanthene Derivatives with Anti-oxidant Scanning

Egyptian Journal of Chemistry
Article 9, Volume 61, Issue 4, July and August 2018, Pages 661-666    PDF (481.82 K)
Document Type: Original Article
DOI: 10.21608/ejchem.2018.3381.1285
Authors
Tamer K Khatab* 1; Ahmed El-Mekabaty2; Zeinab M.Gamala3; Ezz Kandil3
1aOrganometallic-Organometalloid Chemistry Department, Chemical Industries Research Division, National Research Centre, 33 El-Behouth St., Dokki, 12622, Cairo, Egypt
2bChemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt
3Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt
Abstract
Eco-friendly one pot synthesis is developed for 1,8-dioxo-octahydroxanthenes from aldehydes and dimedone using non-toxic, easily prepared and recyclable catalyst (Sm2O3/SiO2) as a silica supported rare earth element under solvent –free conditions. four of the synthesized compounds showed promising ABTS (3i, 68.7; 3b, 59.2; 3h, 50.2 inhibition%) compared with ascorbic acid.
Keywords
Xanthene; aldehydes; Sm2O3; silica; Anti-oxidant
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