DDQ

CAS 84-58-2, Cat. No EN300-21062
Reagent for oxidation

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2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) is a versatile and powerful oxidant used primarily for dehydrogenation, oxidation, and cyclization reactions under mild conditions¹. It is particularly effective for the dehydrogenation of hydrocarbons, α,β-unsaturated carbonyl compounds, alcohols, and heterocycles. DDQ facilitates selective benzylic oxidation, phenolic cyclization, and cleavage of alcohol protecting groups such as allyl and prenyl ethers. DDQ is a bright yellow, moisture-sensitive solid with a melting point of ~215°C. It is stable in a dry atmosphere but decomposes in water presence, releasing toxic hydrogen cyanide.

Synonyms: 2,3-dichloro-5,6-dicyano-1,4- benzoquinone; DDQ; 2,3-dichloro-5,6-dicyano-1,4-benzoquinone; dichlorodicyanoquinone; 4,5-dichloro-3,6-dioxocyclohexa-1,4-diene-1,2-dicarbonitrile; dichlorodicyanobenzoquinone; 2,3-dichloro-5,6-dicyanobenzoquinone; 2,3-dichloro-5,6-dicyano-p-benzoquinone; dichlorodicyano-p-benzoquinone