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US 5,396,012 AGranted
Process for the preparation of monoisopropylnaphthalene
AssigneeHoechst Aktiengesellschaft
InventorsMarita Neuber, Udo Dettmeier, Ernst I. Leupold
Life of this patent
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Abstract
Process for the preparation of monoisopropylnaphthalene by alkylation of naphthalene with the aid of zeolites of the faujasite type as catalysts, wherein the cations of the zeolites have been replaced by alkaline earth metal ions.
Claims16
A process for the preparation of monoisopropyl-naphthalene, comprising:
- contacting naphthalene and an alkylating agent having 3 carbon atoms with a catalyst consisting essentially of a zeolite having a faujasite structure wherein cations of said structure have been replaced by alkaline earth metal ions, and
- alkylating the naphthalene under effective alkylating conditions and obtaining monoisopropylnaphthalene as a product.
Dependencies are inferred from the claim text.