88484-86-0Relevant articles and documents
Synthesis of Condensed Pyrimidine Derivatives from Heterocyclic Amines and 1,3-Dicarbonyl Compounds
Dehuri, S. N.,Pradhan, P. C.,Nayak, A.
, p. 815 - 816 (2007/10/02)
Condensation of 2-amino-5-phenyl-1,3,4-oxadiazole (Ia) with ethyl acetoacetate in the presence of PPA gives 7-methyl-2-phenyl-5H-1,3,4-oxadiazolopyrimidin-5-one (IVa).However, a similar reaction of Ia using catalytic amounts of p-toluenesulphonic a