Biosynthesis, characterization and catalytic activity of the Pd/bentonite nanocomposite for base- and ligand-free oxidative hydroxylation of phenylboronic acid and reduction of chromium (VI) and nitro compounds

2018 ◽  
Vol 271 ◽  
pp. 128-137 ◽  
Author(s):  
Mahmoud Nasrollahzadeh ◽  
S. Mohammad Sajadi ◽  
Mehdi Maham ◽  
Iraj Kohsari
Keyword(s):  
Catalytic Activity ◽  
Phenylboronic Acid ◽  
Nitro Compounds ◽  
Chromium Vi ◽  
Ligand Free

Biosynthesis, characterization and catalytic activity of an Ag/zeolite nanocomposite for base- and ligand-free oxidative hydroxylation of phenylboronic acid and reduction of a variety of dyes at room temperature

2016 ◽  
Vol 40 (3) ◽  
pp. 2501-2513 ◽  
Author(s):  
Arezo Hatamifard ◽  
Mahmoud Nasrollahzadeh ◽  
S. Mohammad Sajadi
Keyword(s):  
Catalytic Activity ◽  
Green Synthesis ◽  
Room Temperature ◽  
Phenylboronic Acid ◽  
Catalytic Efficiency ◽  
Ligand Free

A green synthesis of an Ag/zeolite nanocomposite and its catalytic activity were investigated. Its catalytic efficiency remains unaltered even after several repeated cycles.

A copper nitride catalyst for the efficient hydroxylation of aryl halides under ligand-free conditions

2021 ◽  
Author(s):  
Hang Xu ◽  
Sho Yamaguchi ◽  
Takato Mitsudome ◽  
Tomoo Mizugaki
Keyword(s):  
Catalytic Activity ◽  
Heterogeneous Catalyst ◽  
Aryl Halides ◽  
High Catalytic Activity ◽  
Copper Nitride ◽  
Ligand Free

Copper nitride (Cu3N) was used as a heterogeneous catalyst for the hydroxylation of aryl halides under ligand-free conditions. The cubic Cu3N nanoparticles showed high catalytic activity, comparable to those of...

Environmentally benign selective hydrogenation of α,β-unsaturated aldehydes and reduction of aromatic nitro compounds using Cu based bimetallic nanoparticles supported on multiwalled carbon nanotubes and mesoporous carbon

RSC Advances ◽  
2016 ◽  
Vol 6 (85) ◽  
pp. 82359-82369 ◽  
Author(s):  
H. N. Hareesh ◽  
K. U. Minchitha ◽  
K. Venkatesh ◽  
N. Nagaraju ◽  
N. Kathyayini
Keyword(s):  
Carbon Nanotubes ◽  
Catalytic Activity ◽  
Mesoporous Carbon ◽  
Bimetallic Nanoparticles ◽  
Nitro Compounds ◽  
Environmentally Benign ◽  
Multiwalled Carbon ◽  
Unsaturated Aldehydes ◽  
Aromatic Nitro Compounds ◽  
Aromatic Nitro

The catalytic activity of these materials was investigated in the hydrogenation of α,β-unsaturated aldehydes and reduction of aromatic nitro compounds using different hydrogen sources.

Facile synthesis of Fe@Pd nanowires and their catalytic activity in ligand-free CN bond formation in water

2014 ◽  
Vol 55 (17) ◽  
pp. 2813-2817 ◽  
Author(s):  
Mahmoud Nasrollahzadeh ◽  
Abbas Azarian ◽  
Ali Ehsani ◽  
Ali Zahraei
Keyword(s):  
Catalytic Activity ◽  
Bond Formation ◽  
Facile Synthesis ◽  
Ligand Free ◽  
Pd Nanowires

A PEG1000-DAIL[CdCl3]–toluene temperature-dependent biphasic system that regulates homogeneously catalyzed C–O coupling of organic halides with phenols and alcohols under ligand-free conditions

2011 ◽  
Vol 89 (4) ◽  
pp. 471-480 ◽  
Author(s):  
Yu Lin Hu ◽  
Xiao Yun Ma ◽  
Ming Lu
Keyword(s):  
Catalytic Activity ◽  
Catalytic System ◽  
Biphasic System ◽  
Temperature Dependent ◽  
Convenient Procedure ◽  
Organic Halides ◽  
Ligand Free

An efficient, experimentally simple, and convenient procedure for the C–O coupling of organic halides with phenols and alcohols in a PEG1000-DAIL[CdCl3]–toluene temperature-dependent biphasic system has been developed. The product can be easily isolated by a simple decantation, and the catalytic system can be recycled and reused without loss of catalytic activity.

scholarly journals Pd On Thermo-Responsive Composite of Silica-Coated Carbon Nanotube And 1-Vinyl-3-Butylimidazolium-Based Ionic Liquid Copolymers As An Efficient Catalyst For Hydrogenation of Nitro Compounds

2021 ◽  
Author(s):  
Samahe Sadjadi ◽  
Neda Abedian-Dehaghani ◽  
Majid M. Heravi
Keyword(s):  
Ionic Liquid ◽  
Catalytic Activity ◽  
Aqueous Media ◽  
Nitro Compounds ◽  
Solution Temperature ◽  
High Catalytic Activity ◽  
Impregnation Method ◽  
Efficient Catalyst ◽  
Wet Impregnation ◽  
Coated Carbon

Abstract In this work, an ionic liquid-containing thermo-responsive heterogeneous catalyst with utility for promoting hydrogenation of nitro-compounds in aqueous media is developed. To prepare the catalyst, silica-coated carbon nanotubes were synthesized and vinyl-functionalized. The resulted compound was then polymerized with 1-viny-3-butylimidazolium bromide and N-isopropylacrylamide. The obtained ionic liquid-containing thermo-responsive composite was palladated via wet-impregnation method to give the final catalyst. Study of the performance of the catalyst confirmed high catalytic activity of the catalyst at temperature above the lower critical solution temperature. Furthermore, the catalyst was highly recyclable and showed negligible Pd leaching upon recycling. Broad substrate scope and selectivity of the catalyst towards reduction of nitro functionality were also confirmed. Furthermore, hot filtration test implied the heterogeneous nature of the catalysis. The comparison of the activity of Pd/CNT-P with some control catalysts approved the importance of hybridization of P and CNT and the presence of ionic liquid for the catalytic activity.

scholarly journals Water-soluble gold nanoparticles: recyclable catalysts for the reduction of aromatic nitro compounds in water

RSC Advances ◽  
2020 ◽  
Vol 10 (26) ◽  
pp. 15065-15071 ◽  
Author(s):  
Gustavo A. Monti ◽  
N. Mariano Correa ◽  
R. Darío Falcone ◽  
Gustavo F. Silbestri ◽  
Fernando Moyano
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Activity ◽  
Pure Water ◽  
Nitro Compounds ◽  
Water Soluble ◽  
Imidazolium Salts ◽  
Aromatic Nitro Compounds ◽  
Recyclable Catalysts ◽  
Aromatic Nitro

A structure/catalytic activity study of water-soluble gold nanoparticles, stabilized by zwitterionic ligands derived from imidazolium salts, in the reduction of aromatic nitro compounds in pure water, as well as their recyclability, was performed.

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