Preparation of alkylated cyclopentadienes
AssigneePennzoil Products Company
InventorsClifford G. Venier, Edward W. Casserly
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Abstract
Cyclopentadienes are alkylated by initially reacting primary or secondary alcohols at elevated temperatures in the presence of an alkali metal hydroxide with removal of water to form dimers of said primary or secondary alcohols, and thereafter reacting said alcohol dimers with a cyclopentadiene to alkylate said cyclopentadiene.
Claims7
In a process for the preparation of alkylated cyclopentadienes by reacting a dimer of a primary or secondary alcohol with a cyclopentadiene to alkylate the cyclopentadiene and form an alkylated cyclopentadiene product comprising forming said dimer by reacting a primary or secondary alcohol in the presence of an alkali metal hydroxide catalyst at a temperature range of 200.degree.-2501/2.degree. C. with removal of water to produce said dimer of said primary or secondary alcohol, and reacting said dimer of said primary or secondary alcohol with said cyclopentadiene to alkylate said cyclopentadiene;
- the improvement comprising:
- reacting said dimer of said primary or secondary alcohol with said cyclopentadiene only after the reaction of said primary or secondary alcohol and the removal of said water is complete.
Dependencies are inferred from the claim text.