Journal of Chemical Research
From January 2000, the monthly Journal of Chemical Research has been owned and published by Science Reviews Ltd.
Paper
J. Chem. Res. (S), 1999, 112 - 113, DOI: 10.1039/a806513f
A Facile One-pot Synthesis of Pyrido[2,3-d]pyrimidines and Pyrido[2,3-d:6,5-d
]dipyrimidinesShaker Youssif, Said El-Bahaie and Esam Nabih
The reactions of enaminones (6-aminouracils) 1a–c and 4 with cyano olefins 2a–b and 5a–f led to the formation of pyrido[2,3-d]pyrimidines 3a–f and 6a–f in good yield, while the treatment of 4-amino-2-thiouracil 4 with aromatic aldehydes afforded pyridodipyrimidines 7a–c.
