77329-11-4Relevant academic research and scientific papers
Acylation and Cyclization of N-Hydroxyisoureas by Phenyl Isocyanate
Neitzel, Michael,Zinner, Gerwalt
, p. 10 - 18 (1981)
On adding phenyl isocyanate to the N-hydroxyisoureas 1 the O-carbamoyl derivatives 4 are obtained.They can undergo ring closure to yield Δ2-1,2,4-oxadiazolin-5-one (5a), the 3-imino-1,2,4-oxadiazolidin-5-ones 5b-5e or Δ3-1,2,4-oxadia
