A molybdenum(VI) complex as an efficient catalyst for the synthesis of dihydropyridines

5-Oxo-hexahydroquinoline: an attractive scaffold with diverse biological activities

5-Oxo-hexahydroquinoline (5-oxo-HHQ) represents a biologically attractive fused heterocyclic core. Various synthetic analogs of 5-oxo-HHQ have been synthesized and assessed for different biological activities. Some derivatives have exhibited myorelaxant, analgesic, anticancer, antibacterial, antifungal, antitubercular, antimalarial, antioxidant, anti-inflammatory, multidrug resistance reversal, anti-Alzheimer, neuroprotective, antidiabetic, antidyslipidemic and antiosteoporotic activities. This review provides a comprehensive report regarding the preparation and pharmacological characterization of 5-oxo-HHQ derivatives that have been reported so far. This information will be beneficial for medicinal chemists in the field of drug discovery to design and develop new and potent therapeutical agents bearing the 5-oxo-HHQ nucleus.

Vanadium(iv and v) complexes of pyrazolone based ligands: Synthesis, structural characterization and catalytic applications

Four different types of novel vanadium(iv and v) complexes have been isolated and characterized. Complexes [V^VO(OMe)(L)] are used as catalysts in the oxidative aromatization of Hantzsch 1,4-dihydropyridine derivatives and in the oxidation of tetralin.

Study of temperature dependent three component dynamic covalent assembly via Hantzsch reaction catalyzed by dioxido- and oxidoperoxidomolybdenum(vi) complexes under solvent free conditions

Dioxido- and oxidoperoxidomolybdenum(vi) complexes, and their catalytic potential for the Hantzsch type reaction under solvent free condition, giving corresponding dihydropyridine and pyridine, are reported.