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US 7,030,285 B2Granted
Alkylation process
AssigneeOptatech Corporation
InventorsAdriana De Stefanis, Giorgio Perez, Anthony Tomlinson, Christer Bergst{umlaut over (r)}öm
Life of this patent
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Abstract
A side-chain of a substituted aromatic compound is alkylated by reacting the aromatic compound with an alkylating agent in the presence of a catalyst. The catalyst comprises a restructured smectite clay to which basic ions are incorporated by ion-exchange. The restructuring of the smectite clay is carried out by acid-treating the clay prior to ion-exchange.
Claims17
A process for alkylating or alkenylating a side-chain of a substituted aromatic compound, said process comprising
- restucturing a smectite clay by acid-treating or pillaring,
- incorporating basic ions into the restructured smectite clay by ion-exchange, and
- reacting the substituted aromatic compound with one of an alkylating agent and an alkenylating agent in the presence of a catalyst, wherein said catalyst comprises said restructured smectite clay into which said basic ions have been incorporated.
Dependencies are inferred from the claim text.