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Synthesis 1992; 1992(9): 827-829
DOI: 10.1055/s-1992-26236
short paper
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A Facile Entry to Fused Pyrimidines: Preparation of Pyrimido(4,5-b]quinoline and Pyrido(2,3-d: 6,5-d′]dipyrimidine Derivatives

Pedro Molina* , Maria Jesús Vilaplana, Aurelia Pastor
  • *Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad de Murcia, Campus de Espinardo, E-30071 Murcia, Spain
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Publication Date:
17 September 2002 (online)

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A number of pyrimido[4,5-b]quinolines 3 and pyrido[2,3-d:6,5-d]-dipyrimidines have been prepared by reaction of N,N-disubstituted barbituric acids with the iminophosphorane derived from o-azidobenzaldehyde or 6-amino-5-formyl-1,3-dimethyluracil.