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1,2,4-Dithiazoliumsalze als Ausgangsstoffe für Pyrimidinderivate mit Oxo-, Thioxo- oder Aminofunktion in 4-Stellung

✍ Scribed by Briel, Detlef


Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
367 KB
Volume
1991
Category
Article
ISSN
0947-3440

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✦ Synopsis


Synthesis of Pyrimidine Derivatives Having Oxo, Thioxo or Amino Functions at Position 4 from 1,2,4‐Dithiazolium Salts

The (thioaroylamido)acrylonitriles 2, obtained by reaction of 1,2,4‐dithiazolium salts 1 with ethyl cyanacetate, undergo ring transformation reactions by reaction with ammonium acetate, primary and secondary amines and form the pyrimidines 7–9. A possible mechanism for these reactions is discussed.


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