caa a22 4500 467991235 CHVBK 20180323112545.0 cr unu---uuuuu 170328e19900901xx s 000 0 eng 10.1007/BF00472483 doi (NATIONALLICENCE)springer-10.1007/BF00472483 Synthesis of indoles from pyridinium salts [Elektronische Daten] 8. Preparation of a free anhydro-base from the 1,2,5,6-tetramethyl-3-nitropyridinium cation, and its involvement in the synthesis of indoles from 3-nitropyridinium salts [M. Yurovskaya, A. Afanas'ev, V. Chertkov, Yu. Bundel'] The reaction of 1,2,5,6-tetramethyl-3-nitropyridinium perchlorate with acetone and piperidine on a solid carrier has given the novel, relatively stable 3-nitropyridine anhydro-base, 1,2,5-trimethyl-3-nitro-6-methylene-1,6-dihydropyridine, which bears alkyl groups only. This anhydro-base has been shown not to be an intermediate in the synthesis of indoles from 3-nitropyridinium salts. Plenum Publishing Corporation, 1991 Yurovskaya M. M. V. Lomonosov Moscow State University, 119899, Moscow aut Afanas'ev A. M. V. Lomonosov Moscow State University, 119899, Moscow aut Chertkov V. M. V. Lomonosov Moscow State University, 119899, Moscow aut Bundel' Yu M. V. Lomonosov Moscow State University, 119899, Moscow aut Chemistry of Heterocyclic Compounds Kluwer Academic Publishers-Plenum Publishers 26/9(1990-09-01), 1013-1015 0009-3122 26:9<1013 1990 26 10593 https://doi.org/10.1007/BF00472483 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00472483 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yurovskaya M. M. V. Lomonosov Moscow State University, 119899, Moscow aut NATIONALLICENCE 700 1- Afanas'ev A. M. V. Lomonosov Moscow State University, 119899, Moscow aut NATIONALLICENCE 700 1- Chertkov V. M. V. Lomonosov Moscow State University, 119899, Moscow aut NATIONALLICENCE 700 1- Bundel' Yu M. V. Lomonosov Moscow State University, 119899, Moscow aut NATIONALLICENCE 773 0- Chemistry of Heterocyclic Compounds Kluwer Academic Publishers-Plenum Publishers 26/9(1990-09-01), 1013-1015 0009-3122 26:9<1013 1990 26 10593 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer