N-Heterocyclic carbene-catalyzed [3 + 2] annulation of bromoenals with 3-aminooxindoles: highly enantioselective synthesis of spirocyclic oxindolo-γ-lactams
作者:Kun-Quan Chen、Yao Li、Chun-Lin Zhang、De-Qun Sun、Song Ye
DOI:10.1039/c5ob02466h
日期:——
The chiral N-heterocycliccarbene-catalyzed [3 + 2] annulation of α-bromoenals and 3-aminooxindoles was developed, giving the corresponding spirocyclic oxindolo-γ-lactams in good yields with high diastereoselectivities and enantioselectivities.