Hydroxoiridium/Chiral Diene Complexes as Effective Catalysts for Asymmetric Annulation of α-Oxo- and Iminocarboxamides with 1,3-Dienes
作者:Miyuki Hatano、Takahiro Nishimura
DOI:10.1002/anie.201505382
日期:2015.9.7
The asymmetric [3+2] annulation of α‐oxo‐ and α‐iminocarboxamides with 1,3‐dienes catalyzed by hydroxoiridium/chiraldienecomplexes was realized, giving high yields of the corresponding γ‐lactams with high enantioselectivity.
Copper-catalysed synthesis of alkylidene 2-pyrrolinone derivatives from the combination of α-keto amides and alkynes
作者:Qian Wen Tan、Praful Chovatia、Michael C. Willis
DOI:10.1039/c8ob02205d
日期:——
A Cu(I)-catalysed addition and cyclisation sequence has been developed for the synthesis of (E)-alkylidene pyrrolinone derivatives. The reactions incorporate simple α-keto amides and alkynes as substrates, and employ a commercially available Cu(I) catalyst. The process tolerates good variation of both starting materials, and delivers the desired pyrrolinones in good yields, with high levels of stereocontrol