Diethyl acetonedicarboxylate — a precursor for the synthesis of new substituted 4-aminoquinolines and fused 4-aminopyridines
作者:T. Charvát、M. Potáček、J. Marek
DOI:10.1007/bf00816102
日期:1995.3
The reaction of cyclic enaminonitriles 1 with diethyl acetonedicarboxylate (2) affords fused 4-amino-3-ethoxycarbonyl-2-ethoxycarbonylmethyl-pyridines 4. The course of the reaction and the yield of cyclic products were promoted by tin(IV)chloride. N-substituted diethyl 3-aminoglutaconates 3 seem to be intermediates of the cyclization reaction.