
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. ==Synthesis== The general structural formula is R-S(=O)2-R` where....
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http://en.wikipedia.org/wiki/Sulfone

any of a family of organic sulfur compounds in which two carbon-containing combining groups are linked to the group SO2. The best known members of ... [3 related articles]
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http://www.britannica.com/eb/a-z/s/183

A compound of the general structure R'-SO2-R'. ... (05 Mar 2000) ...
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http://www.encyclo.co.uk/local/20973

(sul´fōn) a compound containing two hydrocarbon radicals attached to the sbondSO2sbond group, especially dapsone (4,4´-sulfonylbisbenzenamine) and its derivatives, which are potent antibacterials effective against many gram-positive and gram-negative organisms and are widely used in treatment of leprosy.
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http://www.encyclo.co.uk/local/21001

Type: Term Pronunciation: sŭl′fōn Definitions: 1. A compound of the general structure R′-SO
2-R″.
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http://www.medilexicon.com/medicaldictionary.php?t=86625

any of a class of organic compounds containing the bivalent group –SO–, united with two hydrocarbon groups.
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https://www.infoplease.com/dictionary/sulfone
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