‘Metal Ion Electrophilic Catalysis’ in Ring-Opening Reactions of 1,2-Epoxides by Metal Halides in Ionic Liquids
Autor: | Dario Landini, Cecilia Betti, Angelamaria Maia |
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Rok vydání: | 2006 |
Předmět: | |
Zdroj: | Synlett. 2006:1335-1338 |
ISSN: | 1437-2096 0936-5214 |
DOI: | 10.1055/s-2006-941562 |
Popis: | Metal ion electrophilic catalysis (Li + > Na + K + ) has been found in ring-opening reactions of 1,2-epoxides 1-5 by metal halides MHal in ionic liquids. The results have been rationalized on the basis of a transition state where the cation M + stabilizes the negative charge developing on the oxygen atom of the oxirane ring while favoring the nucleophilic attack at the adjacent carbon by the ion-paired anion Hal - . |
Databáze: | OpenAIRE |
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