Premium
Iron‐Catalyzed Radical Asymmetric Aminoazidation and Diazidation of Styrenes
Author(s) -
Lv Daqi,
Sun Qiao,
Zhou Huan,
Ge Liang,
Qu Yanjie,
Li Taian,
Ma Xiaoxu,
Li Yajun,
Bao Hongli
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202017175
Subject(s) - enantioselective synthesis , chemistry , catalysis , intermolecular force , ligand (biochemistry) , combinatorial chemistry , aziridine , reaction mechanism , chiral ligand , organic chemistry , molecule , ring (chemistry) , biochemistry , receptor
Asymmetric aminoazidation and diazidation of alkenes are straightforward strategies to build value‐added chiral nitrogen‐containing compounds from feedstock chemicals. They provide direct access to chiral organoazides and complement enantioselective diamination. Despite the advances in non‐asymmetric reactions, asymmetric aminoazidation or diazidation based on acyclic systems has not been previously reported. Here we describe the iron‐catalyzed intermolecular asymmetric aminoazidation and diazidation of styrenes. The method is practically useful and requires relatively low loading of catalyst and chiral ligand. With mild reaction conditions, the reaction can be completed on a 20 mmol scale. Studies of the mechanism suggest that the reaction proceeds via a radical pathway and involves stereocontrol of an acyclic free radical which probably takes place through a group transfer mechanism.