page_title: Sulfone
section_title: From SO2
hierarchical_section_title: Sulfone / Synthesis and reactions / From SO2
caption_attribution_description: English: Sulfolane synthesis: sulphur dioxide and 1,3-butadiene form 3-sulfolene (1). This is hydrogenated to sulfolane (2)
context_page_description: A sulfone is a chemical compound containing a sulfonyl functional group attached to two carbon atoms. The central hexavalent sulfur atom is double-bonded to each of two oxygen atoms and has a single bond to each of two carbon atoms, usually in two separate hydrocarbon substituents.
context_section_description: Sulfur dioxide is a convenient and widely used source of the sulfonyl functional group. Specifically, Sulfur dioxide participates in cycloaddition reactions with dienes.
  The industrially useful solvent sulfolane is prepared by addition of sulfur dioxide to buta-1,3-diene followed by hydrogenation of the resulting sulfolene.
caption: Synthesis of sulfolane by hydrogenation of sulfolene.
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