Gold(I)-Catalyzed Domino Reaction of Aziridinyl Alkynes
作者:Zhen Zhang、Min Shi
DOI:10.1002/chem.201000628
日期:——
Aziridinylalkynes strike gold: A novel gold(I)‐catalyzed domino transformation of aziridinylalkynes with arenes to construct 1,2,3,4‐tetrahydroisoquinoline and 3,4‐dihydroisoquinoline structural motifs (see scheme), especially sterically congested syn‐3,4‐disubstituted 1,2,3,4‐tetrahydroisoquinolines, is described. A plausible mechanism proceeding through a benzylic cation is given based upon deuterium‐labeling
Rh(III)-Catalyzed Domino [4 + 2] Annulation/Aza-Michael Addition of <i>N</i>-(Pivaloyloxy)benzamides with 1,5-Enynes via C–H Activation: Synthesis of Functionalized Aromathecins
Reported herein are the Rh(III)-catalyzedcascadeannulation reactions of N-(pivaloyloxy)benzamides with 1,5-enynes to access diversely substituted aromathecin derivatives involving C–H activation. The developed procedure offers an efficient synthetic tool for the assembly of a wide range of N-(pivaloyloxy)benzamides and 1,5-enynes with good atom economy and functional group tolerance. The key reactions