Pyridines and Quinolines from 1,3-Dichloro-Trimethinecyanines Pyrimidine and Quinazoline from Azacyanine

Authors

  • H.G. Viehe Laboratoire de Chimie Organique, Univeisité de Louvain, Belgium
  • G.J. de Voghel Laboratoire de Chimie Organique, Univeisité de Louvain, Belgium
  • F. Smets Laboratoire de Chimie Organique, Univeisité de Louvain, Belgium

DOI:

https://doi.org/10.2533/chimia.1976.189

Abstract

A new synthesis of 2,4-bis(dialkylamino)-pyridines and quinolines is reported. Starting from primary aryl amines or aliphatic imines a mechanism via ynamine-amidines is followed if the cyanine Ia is used as reagent. When the cyanine is substituted, (I.R. ≠ H) it reacts well in high dilution conditions via the alternate intermediates XI and XII. In the same manner, the azacyanine XV forms the pyrimidine XVII and the quinazoline XVI.

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Published

1976-03-31

Issue

Vol. 30 No. 3 (1976): Forschung/Research

Section

Kurze Mitteilungen

License

Copyright (c) 1976 H.G. Viehe

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
H. Viehe, G. de Voghel, F. Smets, Chimia 1976, 30, 189, DOI: 10.2533/chimia.1976.189.