Synthesis of complex alkoxyamines using a polymer-supported N-hydroxyphthalimide
作者:Shun Su、Joshua R. Giguere、Scott E. Schaus、John A. Porco
DOI:10.1016/j.tet.2004.05.109
日期:2004.9
The synthesis of a polymer-supported N-hydroxyphthalimide is described. The polystyrene-bound N-hydroxyphthalimide resin 1 has been used to prepare complex alkoxyamines exhibiting both stereochemical and positional diversity. Methods for efficient condensation of complex alkoxyamines with aldehydes and ketones are also outlined.
A New Supported Reagent for the Parallel Synthesis of Primary and Secondary <i>O</i>-Alkyl Hydroxylamines through a Base-Catalyzed Mitsunobu Reaction
作者:Ludovic T. Maillard、Meryem Benohoud、Philippe Durand、Bernard Badet
DOI:10.1021/jo050722e
日期:2005.8.1
for a parallel synthesis. A solid-phase approach based on the alkylation by alcohols of a new supported N-hydroxyphthalimide reagent using a Mitsunobu reaction followed by methylaminolysis has been optimized. This study points out the importance of the linker and a specific base effect for the Mitsunobu reaction. A large variety of alcohols can be used to give with moderate to high yields diverse O-alkyl