7 a. 3'. 5*-'3c2 b. 4'-'3C proceeded smoothly. 10 Filtration into HC1 gave the protonated anilinium species, which is stable to air oxidation. An equivalent amount of NaNOz was added to the cold solution, and after 1 h an excess of hypophosphorous acid was added. The formation of phenol, as followed by 13C NMR, was complete after 4-5 days at room temperature. The phenol was isolated by ether extraction followed by codistillation with ...