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N. Suzuki, “Synthesis of Antimicrobial Agents. V. Synthesis and Antimicrobial Activities of Some Heterocyclic Condensed 1, 8-Naphthyridine Derivatives,” Chemical & Pharmaceutical Bulletin, Vol. 28, No. 3, 1980, pp. 761- 768. doi:10.1248/cpb.28.761

has been cited by the following article:

• TITLE: An Efficient Synthesis of Pyrido[2,3-d]pyrimidine Derivatives via One-Pot Three-Component Reaction in Aqueous Media

  AUTHORS: Shahrzad Abdolmohammadi, Saeed Balalaie

  KEYWORDS: Diammonium Hydrogen Phosphate (DAHP), Microwave Irradiation (MWI), Water in Organic Synthesis, Pyrido[2, 3-d]pyrimidine

  JOURNAL NAME: International Journal of Organic Chemistry, Vol.2 No.1, March 15, 2012

  ABSTRACT: A series of pyrido[2,3-d]pyrimidines derivatives have been prepared by one-pot three-component reaction of 4(6)-aminouracil, malononitrile and aromatic aldehydes. This efficient synthesis was done under microwave irradiation conditions (method A) and also using catalytic amount of diammonium hydrogen phosphate [(NH4)2HPO4] (DAHP) in aqueous media (method B). This procedure has the advantages of good yields, easy work-up, and benign environmentally friendly character. Reaction could proceed via domino Knoevenagel-Michael-cyclization reactions.