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Asymmetric oxidation of sulfides with hydrogen peroxide catalyzed by a vanadium complex of a new chiral NOO-ligand
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2009 (English)In: Catalysis communications, ISSN 1566-7367, E-ISSN 1873-3905, Vol. 11, no 4, 294-297 p.Article in journal (Refereed) Published
Abstract [en]

A new chiral NOO-tridentate ligand (8R)-2-(2-hydroxyphenyl)-4-methyl-5,6,7.8-tetrahydro-quinolin-8-ol (1) bearing a rigid tetrahydroquinoline framework was prepared and applied in the vanadium-catalyzed asymmetric oxidation of aryl methyl sulfides with H2O2 as oxidant. Less toxic acetone was found to be the proper solvent for the enantioselective oxidation of sulfides. Under the optimal condition, the asymmetric oxidation of aryl methyl sulfides in acetone catalyzed by VO(acac)(2)/1 at 0 degrees C gives good to high yields (80-95%) of sulfoxides with enantioselectivity up to 77% ee.

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2009. Vol. 11, no 4, 294-297 p.
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URN: urn:nbn:se:kth:diva-19071DOI: 10.1016/j.catcom.2009.10.017ISI: 000272979900015Scopus ID: 2-s2.0-71549117055OAI: oai:DiVA.org:kth-19071DiVA: diva2:337118
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Sun, Licheng

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