Efficient oxidation of alcohols electrochemically mediated by azabicyclo-N-oxyls
摘要:
Preparation of azabicyclo-N-oxyls and the electrochemical oxidation of alcohols using them as mediators have been exploited. This oxidation was applicable to a transformation of sterically hindered secondary alcohols into the corresponding ketones in high yields. (C) 2007 Elsevier Ltd. All rights reserved.
Efficient oxidation of alcohols electrochemically mediated by azabicyclo-N-oxyls
摘要:
Preparation of azabicyclo-N-oxyls and the electrochemical oxidation of alcohols using them as mediators have been exploited. This oxidation was applicable to a transformation of sterically hindered secondary alcohols into the corresponding ketones in high yields. (C) 2007 Elsevier Ltd. All rights reserved.
Ring contraction of N-chlorolactams, a novel rearrangement
作者:Alexandre Drouin、Jean Lessard
DOI:10.1016/j.tetlet.2006.04.024
日期:2006.6
Upon photolysis in methylene chloride at −78 °C, different N-chlorolactams underwent a novelringcontraction to the corresponding carbamoyl chlorides, which were converted to the methyl carbamates. The rearrangement is 100% stereoselective, occurring with retention of configuration at the migrating carbon center. The yields of isolated carbamates ranged from 40% to 57%, the other product being the
Preparation of azabicyclo-N-oxyls and the electrochemical oxidation of alcohols using them as mediators have been exploited. This oxidation was applicable to a transformation of sterically hindered secondary alcohols into the corresponding ketones in high yields. (C) 2007 Elsevier Ltd. All rights reserved.