M. Nikpour, S. Zarinabadi, Sattar Saberi
Jan 10, 2012
Citations
0
Influential Citations
3
Citations
Journal
Bulletin of The Chemical Society of Ethiopia
Abstract
Some new 5-bromo-2,4-dichloro-6-alkylpyrimidines were prepared by sequential treatment of 6-alkyl-pyrimidin-2,4(1 H ,3 H )-diones with bromine and phosphoryl chloride. Condensation of the dithizone with 5-bromo-2,4-dichloro-6-alkylpyrimidines in alkaline acetonitrile achieved 5-alkyl-7-chloro-3-phenylazo-1-phenyl- 1H -pyrimido[4,5- e ][1,3,4] thiadiazines. 7-chlorine atom of these compounds was replaced by secondary amines in boiling ethanol to afford their 7-amino derivatives. KEY WORDS : Azo dyes, 5-Bromo-2,4-dichloro-6-alkyllpyrimidines, Dithizone, Cyclocondensation, Pyrimido[4,5- e][1,3,4]thiadiazine Bull. Chem. Soc. Ethiop. 2012 , 26(1), 115-120. DOI: http://dx.doi.org/10.4314/bcse.v26i1.12