Boron compounds to inhibit formation of tar during the "ene" reaction of an ethylenically unsaturated alpha, beta dicarboxylic acid compound and an ethylenically unsaturated hydrocarbon
AssigneeAmoco Corporation
InventorJoseph B. Hanson
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Abstract
A process for the production of a substituted alpha, beta dicarboxylic acid compound substantially free of tar and other resinous reaction byproducts comprising the reaction at conditions favoring the ENE reaction of an ethylenically unsaturated hydrocarbon and an ethylenically unsaturated alpha, beta dicarboxylic acid compound in the presence of a boron compound.
Claims12
A process for the production of a substituted alpha, beta dicarboxylic acid compound which comprises the reaction at conditions favoring the "ENE" reaction of maleic anhydride with an ethylenically unsaturated hydrocarbon in the presence of an effective tar and resinous reaction by-product reducing amount of a boron compound which is selected from the group consisting of boric acid, boric oxide, and trialkyl borates.
A process for the production of a substituted succinic acid compound which comprises the reaction at conditions favoring the "ENE" reaction of polybutene with maleic anhydride in the presence of an effective tar and resinous reaction by-product reducing amount of a boron compound selected from the group consisting of boric acid, boric oxide, and trialkyl borates.
Dependencies are inferred from the claim text.