Indole- and Pyrrole-BX: Bench-Stable Hypervalent Iodine Reagents for Heterocycle Umpolung
作者:Paola Caramenti、Stefano Nicolai、Jerome Waser
DOI:10.1002/chem.201703723
日期:2017.10.20
Electrophilic Indoles/Pyrroles: The first synthesis of indole- and pyrrole-derived benziodoxole reagents in one step from the heterocycles is reported. The new indole- and pyrrole-BX reagents are stable up to 150 °C and can be used for selective heterocycle transfer onto the C−H bonds of arenes ortho to directing groups by using rhodium or ruthenium catalysts.
Copper(I)-Catalyzed Asymmetric Dearomatization of Indole Acetamides with 3-Indolylphenyliodonium Salts
作者:Chuan Liu、Ji-Cheng Yi、Xiao-Wei Liang、Ren-Qi Xu、Li-Xin Dai、Shu-Li You
DOI:10.1002/chem.201602229
日期:2016.7.25
and direct asymmetric synthesis of 3‐(3a‐indolyl)hexahydropyrroloindoline motifs is an extremely important part of the total synthesis of several alkaloid structures. Herein, an intermolecular, asymmetric cascade dearomatizationreaction of indole acetamides with 3‐indolylphenyliodonium salts has been developed. This protocol provides a straightforward access to 3‐(3a‐indolyl)hexahydropyrroloindolines