- A first synthesis of 8- and 8,10-substituted barbiturils and their thio analogues
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Multicomponent condensations of alkyl(thio)ureas, formaldehyde and (thio)barbituric acids afford new spiro heterocyclic compounds, viz., 8- and 8,10-substituted 2,4,8,10-tetraazaspiro[5.5]undecane-1,3,5,9-tetraones (barbiturils) and their thio analogues.
- Baranov, Vladimir V.,Ivanova, Aleksandra B.,Kolotyrkina, Natal'ya G.,Kravchenko, Angelina N.
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