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Title
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Selective synthesis of sulfoxides and sulfones from sulfides using silica bromide as the heterogeneous promoter and hydrogen peroxide as the terminal oxidant
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Type
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JournalPaper
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Keywords
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sulfoxides, sulfones, sulfides, silica bromide
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Abstract
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Silica bromide as a heterogeneous promoter and reagent is prepared from the reaction of silica gel with PBr3 as a non-hydroscopic, filterable, cheap, and stable yellowish powder that can be stored for months. The results show that silica bromide is a suitable and efficient promoter for the chemoselective oxidation of sulfides to the corresponding sulfoxides or sulfones in the presence of 30% H2O2 in acetonitrile. The excellent yields, heterogeneous conditions, simplicity, compatibility with a variety of functionalities, and ease of isolation of the products make our procedure a practical alternative.
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Researchers
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Hojat Veisi (Fifth Researcher), Samaneh Sedigh Ashrafi (Fourth Researcher), Behrooz Maleki (First Researcher), Alireza Sedrpoushan (Third Researcher), Saba Hemmati (Second Researcher)
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