Stereoselective synthesis of 2,5-disubstituted morpholines using a palladium-catalyzed hydroamination reaction
作者:Alicia McGhee、Brian M. Cochran、Torrey A. Stenmark、Forrest E. Michael
DOI:10.1039/c3cc44117b
日期:——
A palladium-catalyzed hydroamination reaction is the key step in a stereoselectivesynthesis of 2,5-disubstituted and 2,3,5-trisubsituted morpholines from carbamate-protected aziridines. Aziridines are selectively attacked at the more substituted position by unsaturated alcohol nucleophiles using Lewis acid catalysts. Palladium-catalyzed hydroamination of the resulting aminoalkenes gives morpholines