Reaction of imidazole series aldeydes with bis[2-(2-pyridyl)ethyl]-phosphine chalcogenides: Synthesis of polyfunctional heterocyclic systems
摘要:
The nucleophilic addition of bis[2-(2-pyridyl)ethyl]phosphine sulfide and bis[2-(2-pyridyl)-ethyl]phosphine selenide to 2-formyl-1-organylimidazoles and benzimidazoles occurs efficiently without catalysis at room temperature to give functionalized heterocyclic compounds containing imidazole, benzimidazole, and pyridine rings and also chalcogenophosphoryl and hydroxyl groups.