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Organic synthesis via magnetic attraction: benign and sustainable protocols using magnetic nanoferrites
Citation:
Baig, N. B. AND R. S. Varma. Organic synthesis via magnetic attraction: benign and sustainable protocols using magnetic nanoferrites. GREEN CHEMISTRY. Royal Society of Chemistry, Cambridge, Uk, 15(2):398-417, (2013).
Impact/Purpose:
Submitted for publication in the Royal Society of Chemistry (RSC) journal, Green Chemistry
Description:
Magnetic nano-catalysts have been prepared using simple modification of iron ferrites wherein their quasi-homogeneous state, because of nm size range, facilitates the catalysis process as increased surface is available for reaction; the easy separation of the catalysts by external magnet and their recovery and reuse are additional beneficial attributes. Glutathione bearing nano-ferrites have been used as organocatalysts for Paal-Knorr reaction and homocoupling of boronic acids. Nanoferrites, post-synthetically modified by ligands, were used to immobilize nanometals (Cu, Pd, Ru, etc.) which enabled the development of efficient, sustainable and green procedures for azide-alkynes-cycloaddition (AAC) reactions, C-S coupling, O-allylation of phenol, Heck-type reactions and hydration of nitriles.
