Cetyltrimethylammonium Peroxodisulfate
J. Chin. Chem. Soc., Vol. 55, No. 3, 2008 511
155.
General Procedure for Deprotection of Oximes,
Phenylhydrazones, Semicarbazones and Thiosemicar-
bazones with (CTA)2S2O8
7. Gurini, M.; Epifano, F. Synth. Commun. 1999, 29, 541.
8. Mirjalili, B. F.; Zolfigol, M. A.; Bamoniri, A.; Zarei, A. J.
Chin. Chem. Soc. 2004, 51, 509.
In a round-bottomed flask (50 mL) equipped with a
magnetic stirrer, a mixture of the substrate (1 mmol) in
CH3CN (5 mL) and (CTA)2S2O8 (1 mmol) was placed. The
and stirred at reflux temperature for the specified time (Ta-
ble 2). The progress of the reaction was monitored by TLC.
After the reaction was completed the mixture was filtered,
and the solid material was washed with diethyl ether (2 ´ 10
mL). The combined filtrate was evaporated under reduced
pressure to afford pure carbonyl compound in 45-97%. If
necessary, the products were further purified on a silica-gel
plate or silica-gel column with appropriate eluent.
9. Zhang, G. S.; Yang, D. H.; Chen, M. Synth. Commun. 1998,
28, 721.
10. Ho, T. L.; Jana, G. H. J. Chin. Chem. Soc. 1999, 46, 639.
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575.
13. Kuo, Y. H.; Jang, T. L. J. Chin. Chem. Soc. 1991, 38, 203.
14. Gui-Sheng, Z.; Bing, C. Synth. Commun. 2000, 30, 2507.
15. (a) Tajbakhsh, M.; Mohammadpoor-Baltork, I.; Ramzanian-
Lehmali, F. Phosphorus, Sulfur Silicon Relat. Elem. 2003,
178, 2621. (b) Tajbakhsh, M.; Mohammadpoor-Baltork, I.;
Ramzanian-Lehmali, F. J. Chem. Res. (s). 2003, 710. (c)
Tajbakhsh, M.; Hosseinzadeh, R.; Sadatshahabi, M. Synth.
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M.; Ramzanian-Lehmali, F.; Sadatshahabi, M. Phosphorus,
Sulfur Silicon Relat. Elem. 2005, 180, 2279. (e) Tajbakhsh,
M.; Lakouraj, M. M.; Golami, M.; Ramzanian-Lehmali, F.
Phosphorus, Sulfur Silicon Relat. Elem. 2004, 179, 1731.
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1985, 13, 221. (b) Gratzel, C. K.; Jirousek, M.; Gratzel, M.
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ACKNOWLEDGEMENTS
Financial support from research council of Mazandaran
University is gratefully acknowledged.
Received August 6, 2007.
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