caa a22 4500 467991480 CHVBK 20180323112546.0 cr unu---uuuuu 170328e19900701xx s 000 0 eng 10.1007/BF00509705 doi (NATIONALLICENCE)springer-10.1007/BF00509705 Reaction of 1,2-diamino-4-nitrobenzene with 1,5-diketones. Synthesis and oxidative reactions of nitrobenzimidazoles [Elektronische Daten] [V. Kaminskii, O. Slabko, M. Gomolach] Reaction of 1,5-diketones with 1,2-diamino-4-nitrobenzene gave a mixture of the 6- and 7-nitro derivatives of 4a,9-diaza-1,2,4a,9a-tetrahydrofluorene. Oxidation of the 6-nitro derivatives with MnO2 gives para-quinone imines with elimination of the nitro groups. Oxidation of the 7-nitro derivative and oxidative conjugation of 5-nitro-2,2-pentamethylene-1,2-dihydrobenzimidazole with primary amines in the presence of MnO2 gives nitro ortho-quinone imines. Plenum Publishing Corporation, 1991 Kaminskii V. Far Eastern State University, 690600, Vladivostok aut Slabko O. Far Eastern State University, 690600, Vladivostok aut Gomolach M. Far Eastern State University, 690600, Vladivostok aut Chemistry of Heterocyclic Compounds Kluwer Academic Publishers-Plenum Publishers 26/7(1990-07-01), 772-775 0009-3122 26:7<772 1990 26 10593 https://doi.org/10.1007/BF00509705 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00509705 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kaminskii V. Far Eastern State University, 690600, Vladivostok aut NATIONALLICENCE 700 1- Slabko O. Far Eastern State University, 690600, Vladivostok aut NATIONALLICENCE 700 1- Gomolach M. Far Eastern State University, 690600, Vladivostok aut NATIONALLICENCE 773 0- Chemistry of Heterocyclic Compounds Kluwer Academic Publishers-Plenum Publishers 26/7(1990-07-01), 772-775 0009-3122 26:7<772 1990 26 10593 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer