Magnetically separable core–shell iron oxide@nickel nanoparticles as high-performance recyclable catalysts for chemoselective reduction of nitroaromatics

2015 ◽  
Vol 5 (1) ◽  
pp. 286-295 ◽  
Author(s):  
Puran Singh Rathore ◽  
Rajesh Patidar ◽  
T. Shripathi ◽  
Sonal Thakore
Keyword(s):  
Iron Oxide ◽  
Nitro Group ◽  
High Performance ◽  
Nickel Nanoparticles ◽  
Core Shell ◽  
Group Reduction ◽  
Recyclable Catalysts ◽  
Magnetically Separable ◽  
Aromatic Nitro ◽  
Nitro Group Reduction

A magnetically separable core–shell iron oxide@nickel nanocatalyst was synthesized, characterized and applied for the aromatic nitro group reduction.

Development of an Intrinsically Safer Methanolysis/Aromatic Nitro Group Reduction for Step 1 and 2 of Talazoparib Tosylate

2021 ◽  
Author(s):  
David S. B. Daniels ◽  
Robert Crook ◽  
Olivier Dirat ◽  
Steven J. Fussell ◽  
Adam Gymer ◽  
...  
Keyword(s):  
Nitro Group ◽  
Group Reduction ◽  
Aromatic Nitro ◽  
Nitro Group Reduction

Chemoselective Nitro Group Reduction and Reductive Dechlorination Initiate Degradation of 2-Chloro-5-Nitrophenol by Ralstonia eutropha JMP134

1999 ◽  
Vol 65 (6) ◽  
pp. 2317-2323 ◽  
Author(s):  
Andreas Schenzle ◽  
Hiltrud Lenke ◽  
Jim C. Spain ◽  
Hans-Joachim Knackmuss
Keyword(s):  
Substrate Specificity ◽  
Nitro Group ◽  
Reductive Dechlorination ◽  
Ralstonia Eutropha ◽  
Sole Source ◽  
Group Reduction ◽  
Aromatic Nitro ◽  
Nitrophenol Degradation ◽  
Nitro Group Reduction

ABSTRACT Ralstonia eutropha JMP134 utilizes 2-chloro-5-nitrophenol as a sole source of nitrogen, carbon, and energy. The initial steps for degradation of 2-chloro-5-nitrophenol are analogous to those of 3-nitrophenol degradation in R. eutropha JMP134. 2-Chloro-5-nitrophenol is initially reduced to 2-chloro-5-hydroxylaminophenol, which is subject to an enzymatic Bamberger rearrangement yielding 2-amino-5-chlorohydroquinone. The chlorine of 2-amino-5-chlorohydroquinone is removed by a reductive mechanism, and aminohydroquinone is formed. 2-Chloro-5-nitrophenol and 3-nitrophenol induce the expression of 3-nitrophenol nitroreductase, of 3-hydroxylaminophenol mutase, and of the dechlorinating activity. 3-Nitrophenol nitroreductase catalyzes chemoselective reduction of aromatic nitro groups to hydroxylamino groups in the presence of NADPH. 3-Nitrophenol nitroreductase is active with a variety of mono-, di-, and trinitroaromatic compounds, demonstrating a relaxed substrate specificity of the enzyme. Nitrosobenzene serves as a substrate for the enzyme and is converted faster than nitrobenzene.

Synthesis of polyaniline–magnetite nanocomposites using swollen liquid crystal templates for magnetically separable dye adsorbent applications

2018 ◽  
Vol 42 (8) ◽  
pp. 5709-5719 ◽  
Author(s):  
S. Dutt ◽  
T. Vats ◽  
P. F. Siril
Keyword(s):  
Liquid Crystal ◽  
Iron Oxide ◽  
Core Shell ◽  
External Magnet ◽  
One Dimensional ◽  
Shell Nanostructures ◽  
Magnetically Separable

One dimensional iron oxide–polyaniline core–shell nanostructures enable faster adsorption of dyes and separation of the adsorbent using an external magnet.

A General Strategy for the Synthesis of CyclicN-Aryl Hydroxamic Acids via Partial Nitro Group Reduction

2011 ◽  
Vol 76 (9) ◽  
pp. 3484-3497 ◽  
Author(s):  
Laura A. McAllister ◽  
Bruce M. Bechle ◽  
Amy B. Dounay ◽  
Edelweiss Evrard ◽  
Xinmin Gan ◽  
...  
Keyword(s):  
Nitro Group ◽  
Hydroxamic Acids ◽  
General Strategy ◽  
Group Reduction ◽  
Nitro Group Reduction
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