Method of regioselective synthesis of substituted benzoates
AssigneeIowa State University Research Foundation, Inc.
InventorGeorge A. Kraus
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AssigneeIowa State University Research Foundation, Inc.
InventorGeorge A. Kraus
Estimating the term…
A method of synthesis of para-substituted benzoate esters and acids is provided, wherein the para-substituted regioisomer is obtained substantially free of the meta-substituted impurity, the method comprising contacting a coumalate ester or acid and an unactivated alkene at elevated temperature in the presence of a metal oxidation catalyst and an oxidant. The metal oxidation catalyst can be palladium, such as palladium on carbon, and the oxidant can be the oxygen gas in ambient air. The reaction can be carried out without solvent or in high boiling hydrocarbon solvents such as mesitylene. When the unactivated alkene is a monosubstituted alkene, yields of at least about 50 or 60% of para-substituted ester and acid products, respectively, are obtained, substantially free of the regioisomeric meta-substituted impurity.
A method of synthesis of a para-substituted benzoate, comprising contacting a coumalate compound of formula (I)
A method of synthesis of a disubstituted benzoate, comprising contacting a coumalate compound of formula (I)
A method of synthesis of a linker-bonded benzoate dimer of formula:
Dependencies are inferred from the claim text.