Hydrochloric Acid → HCID 11327967, compound

Participants

Reaction Steps

1,2,3,4-tetrafluoro-5,8-dimethoxynaphthalene (6) (4.77 g, 18.3 mmol), 4,5,6,7-tetrafluoroisobenzofuran-1,3-dione (2) (4.77 g, 21.7 mmol), aluminum chloride (23.1 g, 173 mmol), and sodium chloride (3.56 g, 60.9 mmol) were thrown into a 200 mL autoclave and heating was made at 200° C. for 1 hour. After the completion of the reaction, cooling was made down to room temperature, the reaction mixture was poured into dilute hydrochloric acid, and stirring was made at 100° C. for 1 hour. Subsequently, the mixture was filtered and the residue was washed with water, methanol and ether in order. The obtained solid was recrystallized from dichloromethane so as to obtain 6.3 g (yield of 79%) of 1,2,3,4,7,8,9,10,-octafluoro-6,11-dihydroxynaphthacene-5,12-dione (7).

Provenance & Evidence