Aromatic sulfonation reactions
AssigneeThe Queen's University of Belfast
InventorsMartyn John Earle, Suhas Prabhakar Katdare
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Abstract
A process for the sulfonation of an aromatic compound wherein the aromatic compound and sulfonating agent are admixed in the presence of an ionic liquid is described. The method for the sulfonation of aromatic compounds in (e.g. water stable) ionic liquids offers advantages over conventional sulfonation reactions. These are that no by-products form, the ionic liquid is not consumed, and the sulfonating agent (e.g. SO3) is relatively inexpensive.
Claims19
A process for the sulfonation of an aromatic compound comprising admixing the aromatic compound and a sulfonating agent in the presence of an ionic liquid consisting entirely of cations and anions.
Dependencies are inferred from the claim text.