caa a22 4500 467992622 CHVBK 20180323112549.0 cr unu---uuuuu 170328e19900401xx s 000 0 eng 10.1007/BF00497208 doi (NATIONALLICENCE)springer-10.1007/BF00497208 Synthesis of functionally substituted benzo[c]pyrylium salts [Elektronische Daten] [Yu. Nikolyukin, S. Bogza, V. Dulenko] Benzo[c]pyrylium salts that contain an acetyl, cyano, or ethoxycarbonyl group in the 4 position of the pyrylium ring were synthesized by the reaction of 3-(3,4-dimethoxyphenyl)pentane-2,4-dione and α-(3,4-dimethoxyphenyl)acetoacetonitrile and ethyl α-(3,4-dimethoxyphenyl)acetoacetate, as well as ethyl α-(3,4-dimethoxyphenyl)benzoylacetate, with acyl perchlorates. It is shown that α-(3,4-dimethoxyphenyl)acetoacetonitrile ethyleneketal is converted to 3-amino-4-acetylbenzo(c)pyrylium salts under these conditions. Plenum Publishing Corporation, 1990 Nikolyukin Yu Institute of Physical Organic Chemistry and Coal Chemistry, Academy of Sciences of the Ukrainian SSR, 340114, Donetsk aut Bogza S. Institute of Physical Organic Chemistry and Coal Chemistry, Academy of Sciences of the Ukrainian SSR, 340114, Donetsk aut Dulenko V. Institute of Physical Organic Chemistry and Coal Chemistry, Academy of Sciences of the Ukrainian SSR, 340114, Donetsk aut Chemistry of Heterocyclic Compounds Kluwer Academic Publishers-Plenum Publishers 26/4(1990-04-01), 397-402 0009-3122 26:4<397 1990 26 10593 https://doi.org/10.1007/BF00497208 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00497208 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nikolyukin Yu Institute of Physical Organic Chemistry and Coal Chemistry, Academy of Sciences of the Ukrainian SSR, 340114, Donetsk aut NATIONALLICENCE 700 1- Bogza S. Institute of Physical Organic Chemistry and Coal Chemistry, Academy of Sciences of the Ukrainian SSR, 340114, Donetsk aut NATIONALLICENCE 700 1- Dulenko V. Institute of Physical Organic Chemistry and Coal Chemistry, Academy of Sciences of the Ukrainian SSR, 340114, Donetsk aut NATIONALLICENCE 773 0- Chemistry of Heterocyclic Compounds Kluwer Academic Publishers-Plenum Publishers 26/4(1990-04-01), 397-402 0009-3122 26:4<397 1990 26 10593 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer