Pyrogallol → HCID 15044428, compound

Participants

Reaction Steps

18.9 g of pyrogallol, 380 ml of anhydrous dimethylformamide and 13.6 g of sodium hydride in suspension at 53% in oil were mixed together under an inert gas atmosphere and then stirred for 45 minutes at ambient temperature. 29 ml of triethyl borate were added, and the mixture was stirred for 30 minutes. Then, 17.6 ml of 2-nitro fluorobenzene were added over one hour at 0° C. followed by stirring for 20 hours at ambient temperature. The mixture was poured into a water-ice-N hydrochloric acid mixture and the precipitate was separated, washed with petroleum ether, taken up in ethyl ether and washed with N hydrochloric ac:id to obtain about 27 g of the expected product (Yield approx.: 76%) in the form of beige crystals.

Provenance & Evidence