A COMPREHENSIVE REVIEW FOR CATALYTIC POTENTIAL OF SCHIFF BASE METAL COMPLEXES IN OXIDATION REACTIONS
Sonu Prasad, Jyoti Sharma, Gurdeep Sangwan, Avinash Rani
Department of Chemistry, MMEC, Maharishi Markandeshwar (Deemed to be University), Mullana- 133207(Ambala), India
ABSTRACT: A Schiff base metal complex has emerged as an effective catalyst in oxidation chemistry because of its remarkable structural diversity, tunable electronic stabilization properties, and ability to tolerate multiple oxidation states. This review examines the catalytic potential of Schiff base complexes derived from aldehydes and amines, coordinated with transition metal ions covering the 3d, 4d, and 5d series. Several green oxidants are mentioned, including hydrogen peroxide, tert-butyl hydroperoxide, and molecular oxygen, which are used to promote environmentally benign oxidation processes. In this paper, we discuss the mechanisms underlying these catalytic transformations, emphasizing how ligand architecture, metal centers, and reaction conditions affect catalysis efficiency and selectivity. In this study, we investigated how electronic and steric factors control the redox behavior of mono- and polynuclear complexes. Additionally, this review draws attention to recent developments in heterogeneous and recyclable Schiff metal complexes designed for sustainable oxidation methods. The discussion concludes with a discussion of the challenges and future perspectives associated with developing next-generation Schiff base catalysts that are able to enhance their activity, stability, and compliance with green chemistry requirements.
Keyword: Schiff base, Metal complexes, Green chemistry, Oxidation reactions, Sustainable catalysis.
VOLUME 9 ISSUE 12 2025: 139 – 164