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Synthesis 1987; 1987(5): 489-490
DOI: 10.1055/s-1987-33429
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A Simple Synthesis of Substituted 2-Imino-1,2-dihydropyrimidines From 1-Azabutadienes via Diazasilines

José Barluenga* , Miguel Tomás, Alfredo Ballesteros, Vicente Gotor
  • *Departamento de Química Orgánica, Facultad de Química, Universidad de Oviedo, E-33071 Oviedo, Spain
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Publication Date:
18 September 2002 (online)

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1,2-Dihydro-1,3,2-diazasilines, formed on reaction of 4-amino-1-azabutadienes (3-amino-2-propenylideneamines) with dichlorodiphenyl- or dichlorodimethylsilane, react with aliphatic and aromatic isocyanates to give high yields of substituted 2-imino-1,2-dihydropyrimidines.