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.
Enantioselective syntheses of two stereoisomers of 3‐hydroxy‐4‐phenyl‐2‐butanone were investigated via Shi's asymmetric epoxidation or Sharpless asymmetric dihydroxylation of silyl enol ether. (R)‐3‐Hydroxy‐4‐phenyl‐2‐butanone was obtained in 73% enantiomeric excess (ee) by Shi's catalyst/oxone and 80% ee by AD‐mix‐β, while the (S)‐isomer was prepared in 62% ee by AD‐mix‐α. The characteristic odour...
Optically active 2,3‐epoxyhexanol obtained from Sharpless asymmetric epoxidation (AE) was regioselectively reduced to 1,3‐hexandiol or 1,2‐hexandiol. 1,3‐Hexandiol was converted to 3‐mesyloxyhexyl acetate. The following reaction with CH3SK gave 3‐methylthiohexanol, which was oxidized through Swern oxidation to produce 3‐methylthiohexanal. 5‐ and 6‐Butyl‐1,4‐dioxan‐2‐one were formed concurrently by...
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.