Synthesis of chiral sulfoxides by enantioselective sulfide oxidation and subsequent oxidative kinetic resolution using immobilized Ti-binol complex
Title | Synthesis of chiral sulfoxides by enantioselective sulfide oxidation and subsequent oxidative kinetic resolution using immobilized Ti-binol complex |
Publication Type | Journal Article |
Year of Publication | 2009 |
Authors | Sahoo, S, Kumar, P, Lefebvre, F, Halligudi, SB |
Journal | Journal of Catalysis |
Volume | 262 |
Issue | 1 |
Pagination | 111-118 |
Date Published | FEB |
ISSN | 0021-9517 |
Keywords | Kinetic resolution, Mesoporous silica, Non-linear effect, Sulfides, Sulfoxides, Supported ionic liquid, Ti-binol |
Abstract | Chiral Ti-binol complex was immobilized onto ionic liquid modified SBA-15 and characterized by different physicochemical techniques. The catalyst was found to be highly enantioselective in the heterogeneous asymmetric oxidation of prochiral sulfides to sulfoxides and subsequent oxidative kinetic resolution of the sulfoxides using aqueous tert-butylhydroperoxide as the oxidant. A positive non-linear effect was observed in the oxidation-kinetic resolution of thioanisole using this supported catalyst. The supported catalyst was reused in multiple catalytic runs without any loss of enantioselectivity. (C) 2008 Elsevier Inc. All rights reserved. |
DOI | 10.1016/j.jcat.2008.12.007 |
Type of Journal (Indian or Foreign) | Foreign |
Impact Factor (IF) | 5.415 |
Divison category:
Catalysis and Inorganic Chemistry