A study of halide nucleophilicity in ionic liquids

Autor:	Tom Welton, G. Brent Young, N. Llewellyn Lancaster
Rok vydání:	2001
Předmět:	chemistry.chemical_classification chemistry.chemical_compound chemistry Nucleophile Bromide Iodide Inorganic chemistry Ionic liquid medicine Halide Chloride medicine.drug
Zdroj:	Journal of the Chemical Society, Perkin Transactions 2. :2267-2270
ISSN:	1364-5471 1472-779X
Popis:	The relative nucleophilicity of chloride, bromide and iodide anions in [bmim][BF4] ionic liquid has been measured by studying their reaction with methyl p-nitrobenzenesulfonate ([bmim] = 1-butyl-3-methylimidazolium cation). It has been found that iodide is the most nucleophilic halide, and that chloride and bromide have approximately equal nucleophilicities (Cl− is slightly more nucleophilic than Br−) in [bmim][BF4]. Activation energies for the reaction of chloride and bromide with methyl p-nitrobenzenesulfonate have been calculated. The relative nucleophilicity of the halides has been compared with that observed in molecular solvents and in a tetraalkylammonium tetraalkylboride ionic liquid.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae808e397db9005762f30de4b5b8a0e0 https://doi.org/10.1039/b107381h Zobrazit plný text záznamu