Novel approach to synthesizing polymer-functionalized Fe sub(3)O sub(4)/SiO sub(2 )-NH sub(2)viaan ultrasound-assisted method for catalytic selective oxidation of alcohols to aldehydes and ketones in a DMSO/water mixture

• Published in: RSC advances Vol. 5; no. 112; pp. 92335 - 92343
• Main Authors: Dehghan, Mahsa, Motaharinejad, Atieh, Saadat, Mostafa, Ahdenov, Reza, Babazadeh, Mirzaagha, Hosseinzadeh-Khanmiri, Rahim
• Format: Journal Article
• Language: English
• Published: 01.10.2015
• Subjects: Alcohols; Aldehydes; Catalysts; Ketones; Nanocomposites; Oxidation; Silicon dioxide; Surface chemistry
• DOI: 10.1039/c5ra19093b

N-(2-Oxotetrahydrothiophen-3-yl)acrylamide was successfully polymerized on the surface of amine functionalized magnetic silica nanocomposites viaan ultrasound-assisted method. Then, MnO sub(2) nanoparticles were formed on the surface of the polymer functionalized magnetic nanocomposites leading to a magnetically recoverable MnO sub(2) catalyst, which exhibits high catalytic activity in the selective aerobic oxidation of alcohols to aldehydes and ketones in a mixture of DMSO and water in 30 min. The catalyst can be separated from the reaction mixture by applying a permanent magnet externally and can be reused several times without a significant loss of activity.