899829-35-7Relevant academic research and scientific papers
Preparation of thioflavones via thiophosphoryl chloride mediated cyclodehydration and thionation of 1-(2-hydroxyphenyl)-3-arylpropane-1,3-diones
Vimal, Manorama,Pathak, Uma,Pandey, Lokesh Kumar,Suryanarayana, Malladi V. S.
experimental part, p. 30 - 32 (2011/02/26)
A simple and convenient one-pot strategy for the preparation of thioflavones from 1,3-diketones is described. Cyclodehydration of a range of β-diketones and thionation of the resulting flavones was achieved using thiophosphoryl chloride (PSCl3) which serves as both a catalyst and thionating agent. Georg Thieme Verlag Stuttgart · New York.
Synthesis and antibacterial activity of substituted flavones, 4-thioflavones and 4-iminoflavones
Ullah Mughal, Ehsan,Ayaz, Muhammad,Hussain, Zakir,Hasan, Aurangzeb,Sadiq, Amina,Riaz, Muhammad,Malik, Abdul,Hussain, Samreen,Choudhary, M. Iqbal
, p. 4704 - 4711 (2007/10/03)
Synthesis of flavones, 4-thioflavones and 4-iminoflavones was carried out with the substitution of variable halogens, methyl, methoxy and nitro groups in the A, B and AB rings of the respective compounds and we also report here their antibacterial activity. Most of the synthesized compounds were found to be active against Escherichia coli, Bacillus subtilis, Shigella flexnari, Salmonella aureus, Salmonella typhi and Pseudomonas aeruginosa. Activity of 4-thioflavones and 4-iminoflavones was found to be higher than that of their corresponding flavone analogues. Investigated compounds having substituents like F, OMe and NO2 at 4′-position in ring-B exhibited enhanced activity and the presence of electronegative groups in the studied compounds showed a direct relationship to the antibacterial activity.
A facile and cheap method for the conversion of flavones into 4-thioflavones using phosphorus pentasulfide and sodium hydrogen carbonate
Mughal, Ehsan Ullah,Hasan, Aurangzeb,Rasheed, Lubna
, p. 445 - 450 (2007/10/03)
A facile, rapid, high yielding and relatively cheaper method has been developed for the synthesis of 4-thioflavones by using phosphorus pentasulfide and sodium hydrogen carbonate. Seven new and five known substituted 4-thioflavones prepared by this method are reported.
