Ultrasound and Oxone® promoting regioselective selenofunctionalization of chromone
نویسندگان
چکیده
منابع مشابه
IBS-catalyzed regioselective oxidation of phenols to 1,2-quinones with Oxone®.
We have developed the first example of hypervalent iodine(V)-catalyzed regioselective oxidation of phenols to o-quinones. Various phenols could be oxidized to the corresponding o-quinones in good to excellent yields using catalytic amounts of sodium salts of 2-iodobenzenesulfonic acids (pre-IBSes) and stoichiometric amounts of Oxone® as a co-oxidant under mild conditions. The reaction rate of I...
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Invitro antioxidant activity and Molecular modeling studies of nine chromone derivatives optimize their inhibitory activity against Poly [ADP correlated to different molecular properties. The AM1and PM3 semiempirical methods are used to estimate vertical ioniz tion potentials (IPv’s), electron affinity (EA tion coefficient (LogP), hydration energ regression analysis are proposed. The leave fina...
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The chromone and flavonoid alkaloids represent an unusual group of structurally diverse secondary metabolites, derived from the convergence of multiple biosynthetic pathways that are widely distributed through the plant and animal kingdoms. Many of them have been discovered through bioassay-guided chemical investigations of traditional medicines, suggesting potential therapeutic significance. T...
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Dennettine, a new 2,6-dimethoxychromone and three known phenanthrene alkaloids (uvariopsine, stephenanthrine and argentinine) in addition to the phenolic and known compound vanillin were isolated from the roots of Dennettia tripetala. Their structures were determined by physical and spectroscopical one dimensional (1D) and 2D-NMR analysis, including heteronuclear multiple bond correlation and n...
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ژورنال
عنوان ژورنال: Arkivoc
سال: 2020
ISSN: 1551-7012
DOI: 10.24820/ark.5550190.p011.251