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2005
Oxazine derivatives
R 0595
Reaction Between Isocyanides and Dialkyl Acetylenedicarboxylates in the
of 4,5-Diphenyl-1,3-dihydro-2H-imidazol-2-one. One-Pot Synthesis
29- 173 Presence
of 5H-Imidazo[2,1-b][1,3]oxazine Derivatives. — Reaction of alkyl and aryl isocyanides with dialkyl acetylenedicarboxylates in the presence of imidazole (I) results in
formation of polyfunctional imidazo[2,1-b][1,3]oxazine derivatives. The new one-pot
procedure is performed under neutral conditions and requires no activation or modification of the educts. — (ADIB*, M.; GHANBARY, K.; MOSTOFI, M.;
BIJANZADEH, H. R.; Tetrahedron 61 (2005) 10, 2645-2648; Dep. Chem., Fac. Sci.,
Tehran Univ., Tehran, Iran; Eng.) — S. Adam
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