Novel chiral organocatalyst 5a, which can simultaneously act as Brønsted and Lewis base catalysts, leads to a one-pot amidation/Rauhut–Currier sequence that affords highly functionalized α-methylidene-γ-lactams with chiral tetrasubstituted carbon stereogenic centers.
新型手性有机催化剂5a,可以同时作为Brønsted和Lewis碱催化剂,导致一锅法酰胺化/Rauhut–Currier序列,从而得到具有手性四取代碳立体异构中心的高度官能化的α-甲基亚甲基-γ-内酯。