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3+
gle unpaired electron, combines with Au to give a complex
, which in turn in the presence of water produces 1-phenyl
[
C
2
ethanol as the intermediate product. This is finally oxidized to
acetophenone (Scheme 1).
[10] H. Guff, R. K. Murmann, Mechanism of isotopic oxygen exchange
2
4
À
and reduction of ferrate (VI) ion (FeO
3, 6058–6065.
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). J. Am. Chem. Soc. 1971,
This study provides a novel one-pot system, which is highly
efficient, easy, and can be used to oxidize a variety of other func-
tional groups bearing substrates, studies for which are in prog-
ress. The noteworthy feature of oxidation with these metals is
that these oxidized aromatic hydrocarbons are otherwise diffi-
cult to oxidize. High yield of the carbonyl compound makes
the system very attractive from a synthetic point of view. The
minimum amount of solvent used in the synthesis under micro-
wave irradiation is also important from an environmental point
of view.
9
[
—
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1
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[
[
[
8
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[
CONCLUSION
In conclusion, we have developed a rapid and efficient
microwave-assisted procedure for the synthesis of various or-
ganic compounds using a new catalytic system using in situ gen-
erated sodium ferrate as oxidants. The developed novel one-pot
system is highly efficient and can be used to oxidize molecules
with multiplicity of functional groups, for which studies are in
progress.
[
17] P. Landon, D. Enache, F. Albert, M. W. Carley, J. Hutchings, Selective
conversion of cyclohexane to cyclohexanol and cyclohexanone
using a gold catalyst under mild conditions. Catal. Lett. 2005, 101,
3–4.
[
[
[
[
18] A. S. K. Hashmi, Nanocrystalline gold and gold–palladium alloy oxi-
dation catalysts: a persona reflection on the nature of the active
sites. Gold Bull. 2004, 37, 51.
19] G. C. Bond, D. T. Thompson, Nanocrystalline gold and gold–
palladium alloy oxidation catalysts: a personal reflection on the na-
ture of the active sites. Gold Bull. 2000, 33, 41.
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gold–palladium alloy oxidation catalysts a personal reflection on
the nature of the active sites. Gold Bull. 2004, 37, 72.
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palladium alloy oxidation catalysts: a personal reflection on the na-
ture of the active sites. Angew. Chem. Int. 2006, 45, 7896.
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Acknowledgements
Authors are highly thankful for financial support provided by
Department of Science and Technology (DST), New Delhi, for
the project, “Banasthali Center for Education and Research in
Basic Sciences” under their CURIE (Consolidation of University
Research for Innovation and Excellence in Women Universities)
program. Authors are also thankful to the Vice Chancellor of
Banasthali University, Rajasthan, India (304022), for the generous
support provided for this work.
[
[
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Supporting information
Additional supporting information can be found in the online
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wileyonlinelibrary.com/journal/poc
Copyright © 2016 John Wiley & Sons, Ltd.
J. Phys. Org. Chem. (2016)