Synthesis of 3,5-Disubstituted Piperazinones via Palladium(II)-Catalyzed Amination

Autor: Benoit Ferber, Sophie Vogel, Guillaume Prestat, David Madec, Giovanni Poli
Rok vydání: 2006
Předmět:
Zdroj: Synlett. 2006:2133-2135
ISSN: 1437-2096
0936-5214
Popis: The synthesis of 3,5-disubstituted piperazinones has been achieved in quantitative yields via an intramolecular palladium(II)-catalyzed allylic amination in the presence of LiCl and without a reoxidizing system. These conditions, that allow higher diastereoselectivities than those reported earlier using Pd(0), are associated to a different and irreversible process. Conveniently, the stereoselectivity is reversed if the reaction is performed in the absence of LiCl.
Databáze: OpenAIRE