Ir-Catalyzed Regio- and Enantioselective Friedel–Crafts-Type Allylic Alkylation of Indoles
作者:Wen-Bo Liu、Hu He、Li-Xin Dai、Shu-Li You
DOI:10.1021/ol800409d
日期:2008.5.1
Highly regio- and enantioselective Ir-catalyzed Friedel-Crafts type allylic alkylation of indoles have been realized using [Ir(COD)Cl]2/phosphoramidite ligand 1a, affording the branched products with up to >97/3 branched-linear ratio and 92% ee.
Regio- and Stereoselective Allylation of Anilines with Aryl Allenes in Hexafluoroisopropanol Solvent
作者:Suman Ghosh、Shib Nath Saha、Mahiuddin Baidya
DOI:10.1021/acs.orglett.3c01764
日期:2023.7.14
A regio- and stereoselective allylation of N-unsubstituted anilines has been developed that explores aryl allenes as masked allyl synthons and a combination of Mg(OTf)2/HFIP as an effective proton source. The protocol is operationally simple and scalable and offers high yields of diverse p-allyl anilines bearing an olefin motif with exclusive E-geometry. The methodology was also suitable for the regioselective