39818-46-7Relevant academic research and scientific papers
Synthesis and biological evaluation of novel flavone/triazole/benzimidazole hybrids and flavone/isoxazole-annulated heterocycles as antiproliferative and antimycobacterial agents
Rao, Yerrabelly Jayaprakash,Sowjanya, Thummala,Thirupathi, Gogula,Murthy, Nandula Yadagiri Sreenivasa,Kotapalli, Sudha Sravanti
, p. 1 - 12 (2018/06/08)
Abstract: A series of new flavone/isoxazole fused heterocycles 5a–f and flavone/1,2,3-triazole/benzimidazole hybrid heterocycles compounds 7a–t were synthesized via an intramolecular cyclization and Cu(I)-catalyzed click 1,3-dipolar cycloaddition. The pro
A tandem synthesis of 3-aroylcoumarinoflavones catalyzed by l-proline and their antioxidant activity
Thirupathi,Yadaiah Goud,Hemasri,Suban Ali, Md.,Jayaprakash Rao
, p. 477 - 483 (2017/01/10)
A facile, convenient, efficient and high-yielding synthesis of 3-aroylcoumarinoflavones has been developed by the condensation of easily synthesized 7-hydroxy-8-formylflavones and benzoyl acetonitriles in the presence of catalytic amount of l-proline in e
Synthesis of novel substituted pyrano annulated flavones
Jayaprakash Rao,Thirupathi,Prasad Rao, Ch.,Hemasri
, p. 1126 - 1131 (2016/07/06)
A simple and efficient one pot method has been developed for the synthesis of some new functionalized pyrano fused flavone derivatives, alkyl 4,8-dioxo-2-phenyl-4,8-dihydropyrano[2,3-f]chromene-10-carboxylates and dialkyl 4-oxo-2-phenyl-4,8-dihydropyrano[2,3-f]chromene-8,9-dicarboxylates, from 7-hydroxy flavones and 7-hydroxy 8-formyl flavones using dialkylacetalynedicarboxylates in the presence of triphenyl phosphine. The structures of all synthesized compounds were elucidated by FT-IR, 1H and 13C NMR and Mass spectral analysis.
Facile synthesis of 9-acetyl/formyl/cyano-substituted pyrano[2,3-f]flavones and chromones using the baylis-hillman reaction
Reddy, S. Satyanarayana,Krupadanam, G. L. David
experimental part, p. 1292 - 1304 (2010/06/20)
Condensation of 8-formyl-7-hydroxyflavones (2a-f) and 8-formyl-7-hydroxy-2- (2'-furyl)-3-methylchromone (2g) with methyl vinyl ketone (3), acrolein (4), and acrylonitrile (5) in the presence of diazabicyclo[2.2.2]octane (DABCO) under an N2 atmosphere at room temperature using Baylis-Hillman reaction conditions afforded 9-acetyl/formyl/cyano-substituted pyrano2,3-f]flavones (6a-f, 7a-f, 8a-f) and chromones (6g, 7g, 8g).
