Thionyl Chloride → Benzoyl chloride, 4-(hexyloxy)-

Participants

Reaction Steps

In 2 ml of thionyl chloride was dissolved 1.03 g of 4-hexyloxybenzoic acid and the solution was refluxed for 1 hour. The excess thionyl chloride was distilled off and the residue was dried in vacuo to give 4-hexyloxybenzoyl chloride. Separately, 1.00 g of 2-(2-aminophenylthio)benzonitrile and 0.89 g of triethylamine were dissolved in 10 ml of ether and while the solution was stirred with ice-cooling, a solution of the above 4-hexyloxybenzoyl chloride in 5 ml of ether was added. The mixture was stirred overnight. Next morning, water and an aqueous solution of sodium hydrogen carbonate were added in the order mentioned and the resulting precipitate was extracted with ethyl acetate. The extract was dried over magnesium sulfate, the solvent was distilled off, and the residue was recrystallized from ethyl acetate-n-hexane to give 1.27 g of the title compound as white prisms.

Provenance & Evidence