MOLYBDATOPHOSPHORIC ACID AS AN EFFICIENT CATALYST FOR THE CATALYTIC AND CHEMOSELECTIVE OXIDATION OF SULFIDES TO SULFOXIDES USING UREA HYDROGEN PEROXIDE AS A COMMERCIALLY AVAILABLE OXIDANT

An efficient procedure for the chemoselective oxidation of alkyl (aryl) sulfides to the corresponding sulfoxides using urea hydrogen peroxide (UHP) in the presence of Movies a catalytic amount of molybdatophosphoric acid at room temperature is described.The advantages of described method are: generality, high yield and chemoselectivity, short react

In this study, researchers investigated the properties of oscillated and non-oscillated bright points (BPs) in different regions of the Sun, including active regions (ARs) and coronal holes (CHs).The findings revealed both differences and similarities among these BPs across the various regions.Firstly, the study observed that internetwork BPs in AR

The genetic elements regulating the natural quorum sensing (QS) networks of several microorganisms are widely used in synthetic biology to control the behaviour of single cells and engineered bacterial populations via ad-hoc constructed synthetic circuits.A number of novel engineering-inspired biological functions have been implemented and model sy

Abstract Background Triptolide is a structurally unique diterpene triepoxide with potent antitumor activity.However,the effect Charms (Jewelry) and mechanism of triptolide on hepatocellular carcinoma (HCC) is not well studied.Methods Cells were treated with triptolide, and the anti-HCC activity of triptolide was evaluated using flow cytometry, west

The standard semantic description of English in has been traditionally understood as a matter of geometric configuration of the participants in the spatial relation.The landmark is conceived of as an area or volume, or as a three-dimensional entity, the topological relation of inclusion being emphasised.The landmark may also be understood as a MEDI