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    Highly efficient synthesis of pyrimido[4,5-d]pyrimidine-2,4-dione derivatives catalyzed by iodine

    , Article Tetrahedron Letters ; 2014 , p. 4720-4723 Moghaddam, F. M ; Khodabakhshi, M. R ; Aminaee, M ; Sharif University of Technology
    Abstract
    A new and efficient synthesis of pyrimido[4,5-d]pyrimidine-2,4-dione derivatives through the reaction of 6-aminouracils and N,N′-bis(arylmethylidene) arylmethane in the presence of molecular iodine as a readily available and feasible catalyst