Development of Earth-abundant Metal Based Catalysts for Homogeneous Catalysis

Bhunia, Mrinal (2018) Development of Earth-abundant Metal Based Catalysts for Homogeneous Catalysis. PhD thesis, Indian Institute of Science Education and Research Kolkata.

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Abstract

The earth abundant metals are easily available, cost effective and less toxic. Generally, rare metals are considered to be expensive and toxic, whereas earth abundant metals are cheap and they are benign to environment. In recent years, earth-abundant metals have drawn huge attention in the field of homogeneous catalysis. Givent this importance of earth-abundant metals in catalysis for various organic transformations, we were motivated to develop catalysts based on earth-abundant metals such as iron, cobalt, and potassium as these metals are present in human body and these metals are considered to be non-toxic in nature. Among these metals, iron is the most abundant transition metal and in recent years, a large number of homogeneous organic transformations were carried out with iron. Also cobalt and potassium are very much cheap and non-toxic. The major objectives of the present investigation have been developments of earth-abundant metal like iron, cobalt and potassium based catalysts using abnormal N-heterocyclic carbene (aNHC), cyclic (alkyl)(amino)carbene (cAAC) and phenalenyl (PLY) ligands as the backbone for various homogeneously catalyzed reactions with detailed investigations delineating mechanism.

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