A chiral phosphoric acid‐catalysed asymmetric dearomative [3+2] cyclisation for accessing enantioenriched benzofuroindolines with two vicinal tetrasubstituted carbon centres from readily available 1,4‐quinone and 2,3‐disubstituted indoles is developed. This protocol distinguishes itself by availability of the starting materials and mild reaction conditions in a stereoselective manner, which provides
We describe iron‐catalyzed oxidativecouplingcyclization of tetrahydrocarbazoles or THβCs or THγCs to form benzofuroindolenines as fused polycyclic indoles. This mild, efficient and simple approach afforded a library of more than 52 complex compounds across a range of substrate classes with good to excellent yields.
Microwave‐Assisted One‐Pot Synthesis of 1,2,3,4‐Tetrahydrocarbazoles
作者:Jing Chen、Yongzhou Hu
DOI:10.1080/00397910600588330
日期:2006.6.1
A series of 1,2,3,4-tetrahydrocarbazoles 3a-m were synthesized by the reaction of substituted 2-bromocyclohexanones 2a-c with appropriate anilines 1a-i under microwave irradiation without any other catalysts.