Process for preparing chloranil
AssigneeRhone-Poulenc Chimie
InventorsJean-Roger Desmurs, Isabelle Jouve
Life of this patent
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Abstract
Process for preparing chloranil by the oxidative chlorination of a quinone or of a hydroquinone with a hydrochloric acid/hydrogen peroxide mixture, the introduction of hydrogen peroxide being carried out at a temperature above 60.degree. C.
Claims15
A process for preparing chloranil comprising contacting a quinone or hydroquinone with hydrochloric acid to form a mixture, heating the mixture to a temperature above 60.degree. C., and contacting said mixture at a temperature above 60.degree. C. with hydrogen peroxide for a time sufficient to form the chloranil, wherein the reaction takes place in the substantial absence of a chlorination catalyst.
Dependencies are inferred from the claim text.