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US 4,087,336 AGranted
Electrolytic reductive coupling of hydroxybenzaldehydes
AssigneeMonsanto Company
InventorJohn H. Wagenknecht
Life of this patent
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Abstract
Electrolytic reductive coupling of hydroxybenzaldehydes in an aqueous alkaline electrolysis medium in an undivided electrolytic cell yields 1,2-bis(hydroxyphenyl)ethane-1,2-diols.
Claims13
A process for electrolytic reductive coupling of hydroxybenzaldehydes which comprises electrolytic reduction at the cathode in an undivided cell fitted with a steel anode by electrolysis in an aqueous alkaline electrolysis medium comprising such hydroxybenzaldehyde, base, and aqueous solvent, and thereafter recovering a 1,2-bis(hydroxyaryl)ethane-1,2-diol product.
Dependencies are inferred from the claim text.