Synthesis of Imidazo[1,2-a]pyridine and Pyrido[1,2-a]pyrimidine Derivatives by the Addition and Cyclocondensation Reactions of Ketenaminals Containing Imidazolidine or Hexahydropyrimidine Ring with Esters of a,b-Unsaturated Acids
Synthesis of Imidazo[1,2-a]pyridine and Pyrido[1,2-a]pyrimidine Derivatives by the Addition and Cyclocondensation Reactions of Ketenaminals Containing Imidazolidine or Hexahydropyrimidine Ring with Esters of a,b-Unsaturated Acids