2,3-Dichloro-5,6-dicyano-1,4-benzoquinone → HCID 18406506, compound

Participants

Reaction Steps

The compound (2 g) obtained in Example 36 <step 2> was suspended in dioxane (110 mL) and to the suspension was added DDQ (1.88 g). The mixture was heated under reflux for 3 hours. After allowing to cool, to the mixture were added 1N-sodium hydroxide (20 mL) and ethyl acetate(50 mL) . The precipitate crystals were collected by filtration and washed with water and ethanol in turns to obtain the title compound (1.41 g; 71%).

Provenance & Evidence