Highly enantioselective direct vinylogous Michael addition of γ-butenolide to enals
Autor: | Alexandre Alexakis, Adrien Quintard, Alice Lefranc |
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Rok vydání: | 2011 |
Předmět: | |
Zdroj: | Organic Letters, Vol. 13, No 6 (2011) pp. 1540-1543 |
ISSN: | 1523-7052 |
Popis: | An unprecedented and simple direct vinylogous addition of deconjugated butenolide to enals has been developed in excellent stereoselectivities (>95% ee), with Aminal-PYrrolidine (APY) catalyst. This methodology allows for the efficient preparation of complex γ-butenolide from readily available renewable resources. Furthermore, preliminary mechanistic investigations have allowed for the better understanding of the origin of both stereoselectivities and of the observed high reactivities. |
Databáze: | OpenAIRE |
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