Synthesis of 3,5-Disubstituted Piperazinones via Palladium(II)-Catalyzed Amination
Autor: | Benoit Ferber, Sophie Vogel, Guillaume Prestat, David Madec, Giovanni Poli |
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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 |
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