Design, synthesis and application of a new type of bifunctional Le-Phos in highly enantioselective γ-addition reactions of N-centered nucleophiles to allenoates
Dearomatization of 3‐Nitroindoles with Highly γ‐Functionalized Allenoates in Formal (3+2) Cycloadditions
作者:Léo Birbaum、Laurent Gillard、Hélène Gérard、Hassan Oulyadi、Guillaume Vincent、Xavier Moreau、Michael De Paolis、Isabelle Chataigner
DOI:10.1002/chem.201903455
日期:2019.10.28
3-Nitroindoles are easily reacted with highly substituted γ-allenoates in the presence of a commercially available phosphine catalyst. For instance, allenoates derived from biomolecules such as amino and deoxycholic acids are combined for the first time with 3-nitroindole. The corresponding dearomatized (3+2) tricyclic cycloadducts are obtained as α-regioisomers exclusively. DFT computations shed light