Pennzoil Products Company

Edward W Casserly

Clifford G Venier

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.

Preparation of alkylated cyclopentadienes

Tertiary alkyl substituted cyclopentadienes are prepared by reaction of cyclopentadiene with a stoichiometric excess of a tertiary alkyl halide under phase transfer conditions. The tertiary-alkyl substituted cyclopentadienes are useful as synthetic lubricants.

Substituted cyclopentadienes, methods of manufacture and uses

Hydrocarbyl substituted cyclopentadienes, cyclopentenes, and cyclopentanes and synthetic lubricating compositions. The preferred structures contain 1 to 6 alkyl groups which have 4 to 36 carbon atoms and may have different and varying carbon chain structures. The cyclopentenes and cyclopentanes are prepared by hydrogenation from the corresponding cyclopentadiene intermediates. The cyclopentadienes are prepared by reaction with hydrocarbylating agents or alcohols. Mixtures are also disclosed.

Lubricants comprising novel cyclopentanes, cyclopentadienes,

Hydrocarbyl substituted cyclopentadienes, cyclopentenes, and cyclopentanes are synthetic lubricating compositions. The preferred structures contain 1 to 6 alkyl groups which have 4 to 36 carbon atoms and may have different and varying carbon chain structures. The cyclopentenes and cyclopentanes are prepared by hydrogenation from the corresponding cyclopentadiene intermediates. The cyclopentadienes are prepared by reaction with hydrocarylating agents or alcohols. Mixtures are also disclosed.

Hydrocarbyl substituted cyclopentadienes, cyclopentenes, and cyclopentanes are synthetic lubricating compositions. The preferred structures contain 1 to 6 alkyl groups which have 4 to 36 carbon atoms and may have different and varying carbon chain structures. The cyclopentenes and cyclopentanes are prepared by hydrogenation from the corresponding cyclopentadiene intermediates. The cyclopentadienes are prepared by reaction with hydrocarbylating agents or alcohols. Mixtures are also disclosed.

Hydrocarbyl substituted cyclopentadienes, cyclopentenes, and cyclopentanes are sythetic lubricating compositions. The preferred structures contain 1 to 6 alkyl groups which have 4 to 36 carbon atoms and may have different and varying carbon chain structures. The cyclopentenes and cyclopentanes are prepared by hydrogenation from the corresponding cyclopentadiene intermediates. The cyclopentadienes are prepared by reaction with hydrocarbylating agents or alcohols. Mixtures are also disclosed.

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The Woodlands, TX, United States of America

Edward W Casserly