Hydrocarbylethyl sulfonyl fluoride
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United States of America Patent
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-
May 26, 1981
Issued Date -
N/A
app pub date -
Jun 18, 1979
filing date -
Mar 23, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Hydrocarbylethyl sulfonyl fluorides in which the hydrocarbyl substituent contains at least 3 carbon atoms, can be prepared by reacting 2-mercaptoethanol with chlorine to form chloroethyl sulfonyl chloride which is treated with aqueous potassium fluoride to yield chloroethyl sulfonyl fluoride, followed by treatment with magnesium oxide to yield vinyl sulfonyl fluoride. The vinyl sulfonyl fluoride is adducted to a hydrocarbyl substituent precursor, such as an olefin or halogenated olefin. A representative compound is polyisobutenyl sulfonyl fluoride. The hydrocarbylethyl sulfonamide products for which the hydrocarbylethyl sulfonyl fluorides are intermediates are useful as additives for lubricating oils.
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