41981-56-0Relevant academic research and scientific papers
Ring closure reactions of azidouracils to oxazolo- and isoxazolopyrimidines [1]
Van Tinh, Dang,Stadlbauer, Wolfgang
, p. 1025 - 1030 (2007/10/03)
Thermolysis of 6-azidouracils 1 in the presence of polyphosphoric acid leads either to oxazolo[5,4-d]pyrimidine-5,7-diones 5 (by reaction with benzoic acid 2a) or to isoxazolo[3,4-d]pyrimidine-4,6-diones 7 (by reaction with aliphatic carboxylic acids 2b,c
