Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 16. ?-adducts of quinoxalinium salts with amines, alcohols, and enolates and their role in cyclizations with ?-dicarbonyl compounds
Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 16. ?-adducts of quinoxalinium salts with amines, alcohols, and enolates and their role in cyclizations with ?-dicarbonyl compounds