Strained Enamines as Versatile Intermediates for Stereocontrolled Construction of Nitrogen Heterocycles
作者:Gang Chen、Mikio Sasaki、Xinghan Li、Andrei K. Yudin
DOI:10.1021/jo0607921
日期:2006.8.1
and [4.1.0] bicyclic enamines have been prepared by intramolecular oxidative cycloamination of aziridine-containing olefins. This process is initiated by N-bromosuccinimide followed by base-mediated elimination of HBr to afford highly strained exo-bicyclic enamines. In addition, intramolecular aziridine addition to aldehyde functionality was found to afford the [3.1.0] and [4.1.0] bicyclic hemiaminals