2,4-Dichlorobenzoyl chloride → N-(2,4-dichlorobenzoyl)-3,4,5,6-tetrachlorophthalimide

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Reaction Steps

The potassium salt of 3,4,5,6-tetrachlorophthalimide (0.10 mole) and dioxane (1200 ml) are charged into a glass reaction vessel equipped with a mechanical stirrer, thermometer and reflux condenser. 2,4-Dichlorobenzoyl chloride (0.10 mole) is then added dropwise, with stirring, to the reaction mixture at room temperature. After the addition is completed the reaction mixture is heated at reflux for a period of about 1 hour. After this time the reaction mixture is filtered and the filtrate is stripped of solvent to yield the desired product N-(2,4-dichlorobenzoyl)-3,4,5,6-tetrachlorophthalimide.

Provenance & Evidence