Well-Defined Phosphine-Free Manganese(II)-Complex-Catalyzed Synthesis of Quinolines, Pyrroles, and Pyridines
Ankur Maji, Shivangi Gupta, Milan Maji, Sabuj Kundu
Abstract
Herein, we report a simple, phosphine-free, and inexpensive catalytic system based on a manganese(II) complex for synthesizing different important N-heterocycles such as quinolines, pyrroles, and pyridines from amino alcohols and ketones. Several control experiments, kinetic studies, and DFT calculations were carried out to support the plausible reaction mechanism. We also detected two potential intermediates in the catalytic cycle using ESI-MS analysis. Based on these studies, a metal-ligand cooperative mechanism was proposed.
Topics & Concepts
PhosphineManganeseCatalysisChemistryCombinatorial chemistryMedicinal chemistryOrganic chemistryAsymmetric Hydrogenation and CatalysisChemical Synthesis and AnalysisSurface Chemistry and Catalysis