Enantioselective Construction of Spiroindolenines by Ir-Catalyzed Allylic Alkylation Reactions
摘要:
With 2-methyl-1,2,3,4-tetrahydroquinoline-derived phosphoramidite ligand (R,R(a))-L(6), Ir-catalyzed intramolecular C-3 allylic alkylation of indoles has been realized to afford highly enantioenriched spiroindolenine derivatives in 92-98% yields with up to >99/1 dr and 97% ee.
Enantioselective Construction of Spiroindolenines by Ir-Catalyzed Allylic Alkylation Reactions
摘要:
With 2-methyl-1,2,3,4-tetrahydroquinoline-derived phosphoramidite ligand (R,R(a))-L(6), Ir-catalyzed intramolecular C-3 allylic alkylation of indoles has been realized to afford highly enantioenriched spiroindolenine derivatives in 92-98% yields with up to >99/1 dr and 97% ee.
Ruthenium-Catalyzed Intramolecular Allylic Dearomatization Reaction of Indole Derivatives
作者:Xiao Zhang、Wen-Bo Liu、Qing-Feng Wu、Shu-Li You
DOI:10.1021/ol4016578
日期:2013.7.19
An efficient synthesis of spiroindolenine derivatives via a ruthenium-catalyzedintramolecularallylicdearomatizationreaction has been developed. This method features a wide substrate scope, mild reaction conditions, and an operationally simple procedure.