The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A new method for the direct α-alkynylation of ethers C(sp3)-H bond with terminal alkynes C(sp)-H bond is described in good yields in the presence of a pincer ligand and copper(II) ion under mild conditions. The catalytic reaction is compatible with various functional groups. Investigation of the mechanism indicates a catalytic cycle involving a radical process and the cleavage of ether C(sp3)-H bond...
Three-dimensionally ordered macro-porous (3DOM) CuO–CeO 2 was prepared by using polystyrene (PS) colloidal crystal as the template, nitrate as the precursor and citric acid as the chelator. For CO preferential oxidation (PROX), at a higher space velocity of 160,000mLg cat−1 h −1 , complete CO conversion has been obtained between 150°C and 175°C. As the macro-pores of 3DOM...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.