Abstract
A four-component reaction of aryldiazonium tetrafluoroborates, sulfur dioxide, 1,2-dibromoethane, and hydrazines under metal-free conditions is described, providing a novel and efficient approach to 2-arylsulfonyl hydrazones. This transformation proceeds smoothly via insertion of sulfur dioxide under mild conditions with good functional group tolerance.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Borates
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Boric Acids / chemistry*
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Diazonium Compounds / chemistry*
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Ethylene Dibromide / chemistry*
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Hydrazines / chemistry*
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Hydrazones / chemical synthesis*
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Hydrazones / chemistry
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Molecular Structure
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Sulfhydryl Compounds / chemical synthesis
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Sulfhydryl Compounds / chemistry
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Sulfur Dioxide / chemistry*
Substances
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Borates
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Boric Acids
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Diazonium Compounds
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Hydrazines
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Hydrazones
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Sulfhydryl Compounds
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Sulfur Dioxide
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Ethylene Dibromide
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fluoroboric acid