‘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
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