Modular Access to Azepines by Directed Carbonylative C–C Bond Activation of Aminocyclopropanes
作者:Gang-Wei Wang、John F. Bower
DOI:10.1021/jacs.7b13087
日期:2018.2.28
A modular Rh-catalyzed entry to azepines is outlined. Under a CO atmosphere, protecting group directedC–Cbondactivation of aminocyclopropanes provides rhodacyclopentanones. These intermediates are effective for intramolecular C–H metalation of either an N-aryl or N-vinyl unit en route to azepine ring systems. Thus, byproduct-free heterocyclizations are enabled by sequential C–Cactivation and C–H