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Iron-Catalyzed Oxidation of Thioethers by Iodosylarenes: Stereoselectivity and Reaction Mechanism Full article

Journal Chemistry - A European Journal
ISSN: 0947-6539 , E-ISSN: 1521-3765
Output data Year: 2007, Volume: 13, Number: 28, Pages: 8045-8050 Pages count : 6 DOI: 10.1002/chem.200700566
Tags Asymmetric, Catalysis, Iron, Oxidation, Reaction mechanisms, Sulfoxides
Authors Bryliakov Konstantin P. 1 , Talsi Evgenii P. 1
Affiliations
1 Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 630090, Pr. Lavrentieva 5, Novosibirsk (Russia)

Funding (1)

1 Russian Foundation for Basic Research 06-03-32214

Abstract: Catalytic properties of a series of iron(III)–salen (salen=N,N′-bis(salicylidene)ethylenediamine dianion) and related complexes in asymmetric sulfoxidation reactions, with iodosylarenes as terminal oxidants, have been explored. These catalysts have been found to efficiently catalyze oxidation of alkyl aryl sulfides to sulfoxides with high chemoselectivity (up to 100 %) and moderate-to-high enantioselectivity (up to 84 % with isopropylthiobenzene and iodosylmesitylene), the TON (TON=turnover number) approaching 500. The influence of the ligand (electronic and steric effects of the substituents), oxidant, and substrate structures on the oxidation stereoselectivity has been investigated systematically. The structure of the reactive intermediates (complexes of the type [FeIII(ArIO)(salen)] and the reaction mechanism have been revealed by both mechanistic studies with different iodosylarenes and direct in situ 1H NMR observation of the formation of the reactive species and its reaction with the substrate.
Cite: Bryliakov K.P. , Talsi E.P.
Iron-Catalyzed Oxidation of Thioethers by Iodosylarenes: Stereoselectivity and Reaction Mechanism
Chemistry - A European Journal. 2007. V.13. N28. P.8045-8050. DOI: 10.1002/chem.200700566 WOS Scopus РИНЦ ANCAN PMID OpenAlex
Dates:
Submitted: Apr 12, 2007
Published online: Jul 4, 2007
Published print: Sep 28, 2007
Identifiers:
Web of science: WOS:000250032300023
Scopus: 2-s2.0-35048854604
Elibrary: 13542096
Chemical Abstracts: 2007:1179670
Chemical Abstracts (print): 148:33459
PMID: 17611952
OpenAlex: W2151456957
Citing:
DB Citing
Web of science 72
Scopus 80
Elibrary 76
OpenAlex 79
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