Cornforth reagent

• Pyridinium dichromate
• PDC

Orange to brown solid

Fixed

145-147 ° C

Soluble in water

Risk

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The Cornforth reagent systematically pyridinium dichromate (PDC ), is the pyridinium salt of dichromic.

Representation

For the preparation of the Cornforth - reagent is an aqueous solution of chromium ( VI) oxide mixed with pyridine.

Properties

The Cornforth reagent is an orange to brown solid which melts at 145-147 ° C. It is readily soluble in many organic solvents.

Use

It is a powerful oxidizing agent, which is used for the oxidation of alcohols to aldehydes or ketones. Cornforth the reagent is related to the Collins reagent and pyridinium chlorochromate (PCC), pyridinium both also of hexavalent chromium compounds. Due to its toxicity, the Cornforth reagent is used nowadays only rarely.