Reaction of Carbazoles with Nickel Peroxide

Oxidation of Organic Compounds with Nickel Peroxide

“…An unusual oxidative dealkylation has been reported in the case of 2,6-di-tert-butyl-4-methylphenol (44). Thus.…”

“…Similarly, the oxidation of carbazole gives 9.9'-bicarbazole and 9,3',9',9"-tetracarbazole and some amount of polymeric materials. 44 Manganese dioxide oxidation of N-benzylanilines has been reported to give rise to the corresponding benzylidineanilines. 46 On the contrary, nickel peroxide oxidation gives two types of oxidative dimers, in addition to benzylidineanilines.…”

Reaction of 2,3-Diphenylindole with Permanganate. Rearrangements of N,N′-Dimers

“…The compound having m.p. 265" which was reported to be isomeric with 9,9'-dicarbazolyl, but to which no structural assignment was possible, has recently been proved to be the trimer 7 (9,10). Like N,N'-dimer 1, 9,9'-dicarbazolyl (6) underwent thermal rearrangement at 250" to give three products, one of which sublimed during the reaction and was proved to be carbazole.…”