期刊
TETRAHEDRON LETTERS
卷 49, 期 32, 页码 4708-4712出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2008.05.126
关键词
sulfoxide; sulfone; hydrogen peroxide; molybdenum complexes
Dialkyl, aryl-alkyl, benzylic, and benzothiophenic sulfides are selectively oxidized to sulfoxides or sulfones, with stoichiometric amounts of H2O2 (aq) or TBHP, in the presence of complexes Cp'Mo(CO)(3)Cl, CpMoO2Cl and the mesoporous material MCM-41-2 as catalysts. The use of the thianthrene 5-oxide (SSO) probe shows that CpMo(CO)(3)Cl/H2O2 or TBHP are electrophilic oxidants (Xso <= 15). The same conclusion is drawn from competition experiments with a mixture of p-ClC6H4SCH3 and C6H5SOCH3. (C) 2008 Elsevier Ltd. All rights reserved.
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