16074-52-5Relevant 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.
REACTION OF HYDROXYLAMINE WITH 4'-SUBSTITUTED FLAVONE DERIVATIVES
Witczak, Zbigniew,Krolikowska, Maria
, p. 763 - 773 (2007/10/02)
Reactions of hydroxylamine with 4'-substituted flavones have been investigated.Formation of oxime flavone and isoxazole for R = -OCH3, -CH3, -Cl and only isoxazole for R = -OH has been stated, whereas for R = -NO2 formation of an intermediate product of opening γ-pyrone ring and both isomeric isoxazoles has been observed.
