A new catalyst system for intramolecular olefin aminoacetoxylation is described. In contrast to previously reported palladium- and copper-catalyzed systems, the conditions outlined in this communication favor piperdine formation with terminal olefin substrates and induce cyclization with traditionally less reactive disubstituted olefins.
Chiral phosphoric acid catalyzed enantioselective sulfamination of amino-alkenes
作者:Lijun Li、Zequan Li、Deshun Huang、Haining Wang、Yian Shi
DOI:10.1039/c3ra40307f
日期:——
This paper describes a chiral phosphoric acid-catalyzed sulfamination of amino-alkenes to form optically active 2-substituted pyrrolidines and piperidines in up to 86% ee.
本文描述了手性磷酸催化氨基烯烃的磺胺化反应,形成光学活性的 2-取代吡咯烷和哌啶,其 ee 高达 86%。