caa a22 4500 467992045 CHVBK 20180323112547.0 cr unu---uuuuu 170328e19900301xx s 000 0 eng 10.1007/BF00472542 doi (NATIONALLICENCE)springer-10.1007/BF00472542 Reaction of 2-chloro-5-methylbenzoquinone with Β-aminocrotonic ester derivatives [Elektronische Daten] [N. Mikerova, L. Alekseeva, E. Panisheva, Yu. Sheinker, V. Granik] The reaction of 2-chloro-5-methylbenzoquinone with Β-aminocrotonic ester derivatives was studied by PMR spectroscopy in CD3COOD. The spectra indicate the formation of intermediate hydroquinone and quinone derivatives, which subsequently transform into the corresponding indoles. It was shown that the indolization proceeds unequivocally at the 3-position of the initial benzoquinone, and the rate of formation of the indole derivatives decreases with increase in the size of the substituent at the nitrogen atom of the Β-aminocrotonic ester. The starting, intermediate compounds and the end products observed in the PMR spectra were identified by comparison with specially synthesized compounds. Plenum Publishing Corporation, 1990 Mikerova N. S. Ordzhonikidze All-Union Scientific Research Chemical Pharmaceutical Institute, 119815, Moscow aut Alekseeva L. S. Ordzhonikidze All-Union Scientific Research Chemical Pharmaceutical Institute, 119815, Moscow aut Panisheva E. S. Ordzhonikidze All-Union Scientific Research Chemical Pharmaceutical Institute, 119815, Moscow aut Sheinker Yu S. Ordzhonikidze All-Union Scientific Research Chemical Pharmaceutical Institute, 119815, Moscow aut Granik V. S. Ordzhonikidze All-Union Scientific Research Chemical Pharmaceutical Institute, 119815, Moscow aut Chemistry of Heterocyclic Compounds Kluwer Academic Publishers-Plenum Publishers 26/3(1990-03-01), 274-278 0009-3122 26:3<274 1990 26 10593 https://doi.org/10.1007/BF00472542 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00472542 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mikerova N. S. Ordzhonikidze All-Union Scientific Research Chemical Pharmaceutical Institute, 119815, Moscow aut NATIONALLICENCE 700 1- Alekseeva L. S. Ordzhonikidze All-Union Scientific Research Chemical Pharmaceutical Institute, 119815, Moscow aut NATIONALLICENCE 700 1- Panisheva E. S. Ordzhonikidze All-Union Scientific Research Chemical Pharmaceutical Institute, 119815, Moscow aut NATIONALLICENCE 700 1- Sheinker Yu S. Ordzhonikidze All-Union Scientific Research Chemical Pharmaceutical Institute, 119815, Moscow aut NATIONALLICENCE 700 1- Granik V. S. Ordzhonikidze All-Union Scientific Research Chemical Pharmaceutical Institute, 119815, Moscow aut NATIONALLICENCE 773 0- Chemistry of Heterocyclic Compounds Kluwer Academic Publishers-Plenum Publishers 26/3(1990-03-01), 274-278 0009-3122 26:3<274 1990 26 10593 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer