Baeyer–Villiger Oxidation of Cyclohexanone by Hydrogen Peroxide with Fe3O4@GO as Catalyst Under Solvent Free Conditions

Cobalt-Tetraamide-Phthalocyanine Immobilized on Fe3O4/Chitosan Microspheres as an Efficient Catalyst for Baeyer–Villiger Oxidation

“…Baeyer–Villiger (B–V) oxidation is a significant organic reaction for converting ketones to the corresponding lactones or esters, which are indispensable intermediates for the synthesis of antibiotics, steroids, pheromones, and other fine chemicals in laboratory and industrial chemistry. , In the traditional stage of B–V oxidation, the mainly used oxidants are peracids, such as persulfuric acid, perbenzoic acid, m -chloroperbenzoic acid ( m -CPBA), and peroxide (H 2 O 2 ). , However, peracids are usually expensive, dangerous, and difficult to transport and store. High concentration of hydrogen peroxide has a good oxidation effect on the B–V reaction, but the water produced by the reaction is prone to hydrolyze lactones, and high concentration has a higher risk in industrial production. , Based on the above-mentioned factors, the harmfulness and high economic cost of peroxide limit its practical application. Another strategy uses aldehydes and molecular oxygen as green oxidants, known as the Mukaiyama method .…”

“…High concentration of hydrogen peroxide has a good oxidation effect on the B−V reaction, but the water produced by the reaction is prone to hydrolyze lactones, and high concentration has a higher risk in industrial production. 6,7 Based on the above-mentioned factors, the harmfulness and high economic cost of peroxide limit its practical application. Another strategy uses aldehydes and molecular oxygen as green oxidants, known as the Mukaiyama method.…”

The application of copolymer‐coated graphene oxide‐Fe3O4 in the highly efficient synthesis of 2′‐aminospiro[indeno[1,2‐b]quinoxaline‐11,4′‐[4'H] pyran]‐3′‐carbonitrile and 2′‐aminospiro[indeno‐2,4′‐[4'H]pyran]‐3′‐carbonitrile

“…They have found uses in sensors, superparamagnetic relaxometry, magnetic resonance imaging (MRI) in medicine, and the development of new, green, and reusable catalysts. [ In these applications, MNPs are coated by a layer of protective material made of organic or inorganic compounds, such as polymers, silica, some metals (e.g. gold), and some other modifiers.…”