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US 4,377,451 AGranted
Electrochemical conversion of conjugated dienes into alkadienedioic acids
AssigneeShell Oil Company
InventorsWilhelmus J. M. van Tilborg, Cornelis J. Smit
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Abstract
A process for the preparation of alkadienedioic acids by the electrochemical conversion of carbon dioxide and conjugated diene reactants in an electrolysis medium consisting essentially of the reactants, and electrolyte, and an anhydrous aprotic solvent.
Claims10
A process for the preparation of alkadienedioic acids which comprises steps for
- (a) subjecting a carbon dioxide reactant and a conjugated diene reactant to electrolysis in the presence of an essentially anhydrous aprotic electrolysis solvent and an electrolyte, said diene reactant consisting essentially of compounds of the formula:
- ##STR8## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 each individually represents a hydrogen atom or an optionally substituted alkyl, aryl, alkaryl or aralkyl group having up to 12 carbon atoms, to produce an electrolysis product mixture, and
- (b) recovering alkadienedioic acids from the product mixture.
Dependencies are inferred from the claim text.