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Synthesis and some properties of condensation products of isoquinoline with diketene

  • A. A. Akhrem
  • A. M. Moiseenkov
  • V. A. Krivoruchko
Organic and Biological Chemistry

Conclusions

  1. 1.

    The condensation of isoquinoline with diketene leads to the formation of two isomers of the benzo-[a]pyranoquinolizine series, which differ in the g and f annulation of the pyran ring.

     
  2. 2.

    4,5-Dioxo-2-methyl-12b,13-dihydro-4H,5H-benzo[a]pyrano[2,3-g]quinolizine under the influence of benzylamine is converted to 4-oxo-3-acetoacetyl-2-benzylamino-1,4-dihydro-11bH-benzo[a]quinolizine, whereas the isomerie benzo[a]pyrano[f]quinolizine gives 4-oxo-2-benzylamino-1,4-dihydro-11bH-benzo-[a]quinolizine and 4,5-dioxo-2-methyl-1-benzyl-1,4,12b,13-tetrahydro-5H-benzo[a]pyrido[2,3-g]quinolizine.

     

Keywords

Pyran Condensation Product Isoquinoline Benzylamine Pyran Ring 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Consultants Bureau 1974

Authors and Affiliations

  • A. A. Akhrem
    • 1
    • 2
  • A. M. Moiseenkov
    • 1
    • 2
  • V. A. Krivoruchko
    • 1
    • 2
  1. 1.N. D. Zelinskii Institute of Organic ChemistryAcademy of Sciences of the USSRUSSR
  2. 2.Institute of Physical and Organic ChemistryAcademy of Sciences of the Belorussian SSRUSSR

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