Synthetic Route to Chiral Tetrahydroquinoxalines via Ring-Opening of Activated Aziridines
摘要:
A highly regio- and stereoselective route for the synthesis of racemic and nonracemic tetrahydroquinoxalines via the S(N)2-type ring-opening of activated aziridines with 2-bromoanilines followed by the Pd-catalyzed intramolecular C-N bond formation is described.
Synthesis of Chiral Vicinal Diamines by Silver(I)-Catalyzed Enantioselective Aminolysis of N-Tosylaziridines
作者:Zhuo Chai、Pei-Jun Yang、Hu Zhang、Shaowu Wang、Gaosheng Yang
DOI:10.1002/anie.201610693
日期:2017.1.9
The kinetic resolution of 2‐aryl‐N‐tosylaziridines and the asymmetric desymmetrization of meso‐N‐tosylaziridines by ring openings with various primary and secondary anilines, and aliphatic amines as nucleophile have been realized by using a single silver(I)/chiral diphosphine complex as catalyst for the first time. The simple starting materials, broad scope, and easy scalability render this protocol
Synthetic Route to Chiral Tetrahydroquinoxalines via Ring-Opening of Activated Aziridines
作者:Manas K. Ghorai、Ashis K. Sahoo、Sarvesh Kumar
DOI:10.1021/ol2023906
日期:2011.11.18
A highly regio- and stereoselective route for the synthesis of racemic and nonracemic tetrahydroquinoxalines via the S(N)2-type ring-opening of activated aziridines with 2-bromoanilines followed by the Pd-catalyzed intramolecular C-N bond formation is described.