Magnetic nanoparticle supports for asymmetric catalysts

Abstract

The introduction of magnetic nanoparticles (MNPs) has favoured the recovery of organocatalysts for asymmetric catalysis with techniques of magnetic separation.

Recent Developments on Supported Hydrogen‐bond Organocatalysts

“…This fact provides a number of advantages such as magnetic organocatalysts can be easily separated from the reaction medium applying an external magnet and allow working in quasi-homogeneous reaction conditions. [67] In addition magnetic nanoparticles have other several prominent advantages, such as high surface/area ratio, unique magnetic properties, outstanding dispersibility, chemical durability, and low toxicity. Despite these facts, few examples have been reported about magnetic nanoparticles as supports for hydrogen bonding catalysts.…”

Synthesis and application of novel 1,2,3‐triazolylferrocene‐containing ionic liquid supported on Fe3O4 nanocatalyst in the synthesis of new pyran‐substituted Betti bases

“…[5][6][7] Nowadays, magnetic nanoparticles are applied in various industrial and biological fields such as bio-separations, drug delivery, magnetic resonance imaging, hyperthermia and catalytic processes. [8][9][10][11][12][13][14][15] Multicomponent reactions have major roles in organic synthesis [16] because of their advantages such as high atom efficiency, environmental friendliness, time and energy saving and quick and simple performance. [17][18][19][20] One of the important multicomponent reactions is the Betti reaction which was introduced by Mario Betti.…”

Ionic liquid immobilized onto fibrous nano-silica: A highly active and reusable catalyst for the synthesis of quinazoline-2,4(1H,3H)-diones

“…Recently, the use of nanocatalysts has increased rapidly and has resulted in the development of several active and efficient nanocatalysts for various protocols [8][9][10][11][12][13][14][15][16][17][18]. These systems have several advantages over conventional catalysts, such as superior activity and improved stability.…”