Hydrochloric Acid → HCID 54438416, compound

Participants

Reaction Steps

2 g (4.31 millimols) of tetrabromophthalic anhydride, 0.975 g (8.84 millimols) of thiophenol, 2.41 g (17.47 millimols) of potassium carbonate and 20 ml of tetrahydrofuran are stirred at 0° C. for 2 hours and at 25° C. for 2 hours. The mixture is acidified with 2N HCl solution and extracted with tetrahydrofuran/toluene. The extracts are dried over sodium sulfate and evaporated. After recrystallisation from toluene/cyclohexane, 1.68 g (75% of theory) of 4,5-bis-(phenylthio)-3,6-dibromophthalic anhydride are obtained; melting point 183°-4° C.

Provenance & Evidence