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Solvent free aza-annulation using 4-dimethylamino 2-aza-1,3-dienes as γ-dielectrophiles for a new synthesis of imidazole-4-carboxylates

✍ Scribed by Stephane Jouneau; Jean Pierre Bazureau

Publisher: Elsevier Science
Year: 1999
Tongue: French
Weight: 126 KB
Volume: 40
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(99)01696-2

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✦ Synopsis

4-Dimethylamino 2-aza-l,3-diene~ 2a,b derived respectively from methyl N-(Iethoxyethyliden)glycinate la and methyl N-[bis-(methylthio)methylene]glycinate lb react with hydrazines 3a,b and amines 3e,d to give the corresponding new imidazole-4-carboxylates 5(a-f) by a solvent-free aza-annulation.

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