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US 6,441,229 B1Granted
Process for the preparation of higher-alkane sulfonyl halides
AssigneePhillips Petroleum Company
InventorJames E. Shaw
Life of this patent
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Abstract
Higher-alkane sulfonyl halides are prepared by contacting a sulfur-containing compound, a halogen-containing compound, and a phase transfer agent within a reaction zone under reaction conditions.
Claims7
A process for making an alkane sulfonyl halide, said process comprises:
- contacting within a reaction zone and under suitable reaction conditions a halogen-containing compound selected from the group consisting of chlorine and bromine with a sulfur-containing compound of the formula RSH, wherein R is an alkyl group having from three to twelve carbon atoms, in the presence of both an aqueous hydrogen halide selected from the group consisting of aqueous hydrochloric acid and aqueous hydrobromic acid and an alkoxylated compound phase transfer agent selected from the group consisting of alkoxylated alcohols, alkoxylated mercaptans, sulfates of alkoxylated alcohols, alkoxylated phenols, sulfates of alkoxylated phenols and combinations of two or more thereof, whereby said alkane sulfonyl halide is formed.
Dependencies are inferred from the claim text.