76862-28-7Relevant articles and documents
Solvent free aza-annulation using 4-dimethylamino 2-aza-1,3-dienes as γ-dielectrophiles for a new synthesis of imidazole-4-carboxylates.
Jouneau, Stephane,Bazureau, Jean Pierre
, p. 8097 - 8098 (1999)
4-Dimethylamino 2-aza-1,3-dienes 2a,b derived respectively from methyl N-(1-ethoxyethyliden)glycinate 1a and methyl N-[bis-(methylthio)methylene]glycinate 1b react with hydrazines 3a,b and amines 3c,d to give the corresponding new imidazole-4-carboxylates 5(a-f) by a solvent-free aza-annulation.