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Vanadium-catalyzed, microwave-assisted oxidations with H2O2 in ionic liquids.
- Source :
- Pure & Applied Chemistry; Jul2009, Vol. 81 Issue 7, p1265-1277, 13p, 1 Diagram, 5 Charts, 3 Graphs
- Publication Year :
- 2009
-
Abstract
- The application of vanadium(V) catalysts in selective oxidation with peroxides offers an efficient procedure that is compatible with different functional groups and leads to good yields and selectivities. However, the search for more efficient and sustainable procedures that employ H<subscript>2</subscript>O<subscript>2</subscript> as oxidant remains an important topic. In the last few years, striking results have been obtained by applying microwave (MW) activation in metal-catalyzed reactions carried out in ionic liquids (ILs). In the present study, results achieved with vanadiumbased catalysts in oxidations of various substrates with H<subscript>2</subscript>O<subscript>2</subscript> are presented; in particular, epoxidation of alkenes and sulfoxidation of thioethers have been investigated. Notably, in the latter oxidation, a significant improvement in the rate of reaction and an increase in selectivity have been observed in the case of hydrophobic ILs in combination with MW activation. [ABSTRACT FROM AUTHOR]
- Subjects :
- VANADIUM
OXIDATION
PEROXIDES
MICROWAVES
IONIC liquids
SUSTAINABLE chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 00334545
- Volume :
- 81
- Issue :
- 7
- Database :
- Complementary Index
- Journal :
- Pure & Applied Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 53156508
- Full Text :
- https://doi.org/10.1351/PAC-CON-08-09-19