TY - JOUR
T1 - Fe3O4@SiO2/EDAC-Pd(0) as a novel and efficient inorganic/organic magnetic composite
T2 - Sustainable catalyst for the benzylic C-H bond oxidation and reductive amination under mild conditions
AU - Bhardwaj, Madhvi
AU - Sharma, Harsha
AU - Paul, Satya
AU - Clark, James H.
PY - 2016/3/30
Y1 - 2016/3/30
N2 - A facile and novel methodology has been reported for the synthesis of Pd(0) nanoparticles onto ethylene diamine functionalized inorganic/organic magnetic composite [Fe3O4@SiO2/EDAC-Pd(0)]. The amine functionalized inorganic/organic substrate proved to be an efficient host for the immobilization of palladium nanoparticles giving a highly stable, water dispersible, active and yet magnetically recoverable heterogeneous catalyst. The synthesized catalyst displayed remarkable activity towards the selective C-H bond oxidation using TBHP and reductive amination of aldehydes with nitroarenes using atom efficient molecular hydrogen in green solvents, and could be reused efficiently upto 6 consecutive runs. The novel catalyst is characterized by FT-IR, TGA, XRD, SEM, HRTEM, EDX, ICP-AES, XPS and VSM techniques. Because of the magnetic nature of the catalyst, it can be retrieved using an external magnet, which eliminates the obligation of catalyst filtration after completion of the reaction, thus making it an eco-friendly and economical catalyst to perform the organic transformations.
AB - A facile and novel methodology has been reported for the synthesis of Pd(0) nanoparticles onto ethylene diamine functionalized inorganic/organic magnetic composite [Fe3O4@SiO2/EDAC-Pd(0)]. The amine functionalized inorganic/organic substrate proved to be an efficient host for the immobilization of palladium nanoparticles giving a highly stable, water dispersible, active and yet magnetically recoverable heterogeneous catalyst. The synthesized catalyst displayed remarkable activity towards the selective C-H bond oxidation using TBHP and reductive amination of aldehydes with nitroarenes using atom efficient molecular hydrogen in green solvents, and could be reused efficiently upto 6 consecutive runs. The novel catalyst is characterized by FT-IR, TGA, XRD, SEM, HRTEM, EDX, ICP-AES, XPS and VSM techniques. Because of the magnetic nature of the catalyst, it can be retrieved using an external magnet, which eliminates the obligation of catalyst filtration after completion of the reaction, thus making it an eco-friendly and economical catalyst to perform the organic transformations.
UR - http://www.scopus.com/inward/record.url?scp=84974534974&partnerID=8YFLogxK
U2 - 10.1039/c5nj03413b
DO - 10.1039/c5nj03413b
M3 - Article
AN - SCOPUS:84974534974
VL - 40
SP - 4952
EP - 4961
JO - NEW JOURNAL OF CHEMISTRY
JF - NEW JOURNAL OF CHEMISTRY
SN - 1144-0546
IS - 6
ER -