One pot synthesis of pyridophenanthroline and pyrrolophenanthroline derivatives by regioselective reaction between 1,7-phenanthroline and dialkyl acetylenedicar boxy late: new fused heterocyclic compounds

摘要

1,7-Phenanthroline reacts with dialkyl acetylenedicarboxylate in a regioselective manner to give new macromolecules such as tetramethyl-6a H-pyrido[1,2-i][1,7]phenanthroline-7,8,9,10-tetracarboxylate and tri-alkyl pyrrolo[1,2-i] [1,7]phenanthroline-7,8,9-tricarboxylate derivatives.