Oxidation of Sulfides with Polymer-Supported Oxo-Vanadium
Catalyst

S. L. Jain; B. Sain

doi:10.1055/s-2008-1078190

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Synfacts 2008(10): 1117-1117
DOI: 10.1055/s-2008-1078190

Polymer-Supported Synthesis

Oxidation of Sulfides with Polymer-Supported Oxo-Vanadium Catalyst

Contributor(s): Yasuhiro Uozumi, Yoshinori Hirai
S. L. Jain*, B. Sain
Indian Institute of Petroleum, Dehradun, India

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Publication History

Publication Date:
22 September 2008 (online)

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Significance

Polymer-supported oxo-vanadium Schiff bases were readily prepared through (i) Schiff base formation via dehydrative condensation of 4-aminobenzoic acid and salicylaldehyde, (ii) complexation of the Schiff base 1 with VO(acac)₂ giving 2, (iii) PPh₃-mediated amide formation of 2 with a polymeric azides (PS-N₃ and MeO-PEG-N₃). The oxidation of various sulfides with 3 or 4 afforded the corresponding sulfoxides in 74-97% yield.