Synthesis 2017; 49(16): 3700-3709
DOI: 10.1055/s-0036-1590470
paper
© Georg Thieme Verlag Stuttgart · New York

A New Approach to the Synthesis of Benzo[c][1,7]naphthyridin-4(3H)-ones

Authors

  • Ivan V. Kulakov

    a   Department of Organic Chemistry, Omsk F.M. Dostoevsky State University, 55a Mira Ave, 644077 Omsk, Russian Federation   Email: fisyuk@chemomsu.ru
  • Anton L. Shatsauskas

    b   Laboratory of New Organic Materials, Omsk State Technical University, 11 Mira Ave, 644050 Omsk, Russian Federation
  • Mariya V. Matsukevich

    a   Department of Organic Chemistry, Omsk F.M. Dostoevsky State University, 55a Mira Ave, 644077 Omsk, Russian Federation   Email: fisyuk@chemomsu.ru
  • Irina V. Palamarchuk

    с   Sh. Ualikhanov Kokshetau State University, 76 Abaya St., Kokshetau 020000, Kazakhstan
  • Tulegen M. Seilkhanov

    a   Department of Organic Chemistry, Omsk F.M. Dostoevsky State University, 55a Mira Ave, 644077 Omsk, Russian Federation   Email: fisyuk@chemomsu.ru
  • Yuriy V. Gatilov

    d   N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Science, 9 Akademika Lavrientieva Ave., Novosibirsk 630090, Russian Federation
    e   Novosibirsk State University, 2 Pirogov St., Novosibirsk 630090, Russian Federation
  • Alexander S. Fisyuk*

    a   Department of Organic Chemistry, Omsk F.M. Dostoevsky State University, 55a Mira Ave, 644077 Omsk, Russian Federation   Email: fisyuk@chemomsu.ru
    b   Laboratory of New Organic Materials, Omsk State Technical University, 11 Mira Ave, 644050 Omsk, Russian Federation

This work was supported by the Ministry of Education and Science of the Russian Federation (project number 4.1657.2017/4.6).
Further Information

Publication History

Received: 26 February 2017

Accepted after revision: 22 April 2017

Publication Date:
07 June 2017 (online)


Graphical Abstract

Abstract

A simple and efficient approach has been developed for the synthesis of previously inaccessible 6-arylbenzo[c][1,7]naphthyridin-4(3H)-ones, which is based on the interaction of 3-amino-6-methyl-4-arylpyridin-2(1H)-ones and aromatic aldehydes in a strong acidic media (trifluoroacetic, phosphorous or polyphosphorous acids) under heating. The initial imine derivatives undergo Pictet–Spengler condensation to form intermediate 6-aryl-5,6-dihydrobenzo[c]-1,7-naphthyridin-4(3H)-ones, which are oxidized by atmospheric oxygen to give 3-amino-6-methyl-4-arylpyridin-2(1H)-ones as the final products.

Supporting Information