Simple and Efficient Reduction of Aromatic Nitro Compounds Using Recyclable Polymer-Supported Formate and Magnesium

2005 ◽  
Vol 58 (2) ◽  
pp. 149 ◽  
Author(s):  
Keelara Abiraj ◽  
Gejjalagere R. Srinivasa ◽  
D. Channe Gowda
Keyword(s):  
Room Temperature ◽  
Low Cost ◽  
Nitro Compounds ◽  
Hydrogen Donor ◽  
Hydroxyl Groups ◽  
Chromatographic Purification ◽  
Aromatic Nitro Compounds ◽  
Efficient Reduction ◽  
Polymer Supported ◽  
Aromatic Nitro

Aromatic nitro compounds were chemoselectively reduced to the corresponding amines using recyclable polymer-supported formate as a hydrogen donor in the presence of low-cost magnesium powder at room temperature. Use of the immobilized hydrogen donor affords the product amine in excellent yield (90–97%) without the need for any chromatographic purification steps. This method was found to be highly facile with selectivity over several other functional groups, such as halogen, alkene, nitrile, carbonyl, ester, amide, methoxy, phenol, and hydroxyl groups.

scholarly journals Efficient reduction of aromatic nitro compounds catalyzed by nickel chloride supported on natural phosphate

2018 ◽  
Vol 7 (5) ◽  
pp. 317-327 ◽  
Author(s):  
Abderrahim Baba ◽  
Hicham Ouahbi ◽  
Ayoub Hassine ◽  
Jalila Sebti ◽  
Laila Laasri ◽  
...  
Keyword(s):  
Sodium Borohydride ◽  
Room Temperature ◽  
Nickel Chloride ◽  
Nitro Compounds ◽  
Raw Material ◽  
Natural Phosphate ◽  
Aromatic Nitro Compounds ◽  
Efficient Reduction ◽  
Excellent Activity ◽  
Aromatic Nitro

Natural phosphates are an important natural resource in Morocco, which need to be valorized; they can be used not only as primary raw material to produce the fertilizers but also as catalysts. In this work, we have prepared natural phosphate-supported nickel chloride (NiCl2/NP). This material was effectively used as a heterogeneous catalyst in the presence of sodium borohydride as a reducing agent. The reaction was carried out at room temperature in an aqueous medium. The catalyst showed an excellent activity for the reduction of aromatic nitro compounds under simple conditions along with good usability.

scholarly journals Chemoselective Hydrogenation of Aromatic Nitro Compounds Using Diammonium Hydrogen Phosphite and Commercial Zinc Dust

2008 ◽  
Vol 5 (4) ◽  
pp. 914-917 ◽  
Author(s):  
K. Anil Kumar ◽  
K. S. Shruthi ◽  
Nagaraja Naik ◽  
D. Channe Gowda
Keyword(s):  
Room Temperature ◽  
Zinc Dust ◽  
Nitro Compounds ◽  
The Other ◽  
Hydrogen Donor ◽  
Hydrogen Phosphite ◽  
Aromatic Nitro Compounds ◽  
Chemoselective Hydrogenation ◽  
Aromatic Nitro ◽  
Diammonium Hydrogen

The aromatic nitro compounds are reduced to their corresponding amines at room temperature in good yields by employing diammonium hydrogen phosphite as hydrogen donor and zinc as catalyst. The hydrogenation is fast and selective in the presence of the other sensitive functionalities such as halogens, -OH, -NH2, -OCH3, -CN, -COCH3, -COOH, -COORetc. It was observed that, this system is equally competitive with existing methods.

scholarly journals Synthesis, characterisation of polymer-supported palladium-2-methylimidazole complex catalyst for the hydrogenation of aromatic nitro compounds

2011 ◽  
Vol 35 (2) ◽  
pp. 112-115 ◽  
Author(s):  
Udayakumar Velua ◽  
Alexander Stanislaus ◽  
Gayathri Virupaiah ◽  
Kashinath Rangu Patil ◽  
Viswanathan Balasubramanian ◽  
...  
Keyword(s):  
Nitro Compounds ◽  
Complex Catalyst ◽  
Aromatic Nitro Compounds ◽  
Supported Palladium ◽  
Polymer Supported ◽  
Aromatic Nitro

scholarly journals A hydroquinone based palladium catalyst for room temperature nitro reduction in water

RSC Advances ◽  
2014 ◽  
Vol 4 (66) ◽  
pp. 35233-35237 ◽  
Author(s):  
Alok Kumar ◽  
Kallol Purkait ◽  
Suman Kr. Dey ◽  
Amrita Sarkar ◽  
Arindam Mukherjee
Keyword(s):  
Palladium Catalyst ◽  
Room Temperature ◽  
Catalytic Reduction ◽  
Nitro Compounds ◽  
Aromatic Nitro Compounds ◽  
Aromatic Nitro ◽  
Nitro Reduction

A PdII–hydroquinone complex shows efficient catalytic reduction of aromatic nitro compounds in water at room temperature followed by Suzuki–Miyaura coupling.

Reduction of Aromatic Nitro Compounds to Azoxy Compounds with Sodium Borohydride

2014 ◽  
Vol 1033-1034 ◽  
pp. 18-21
Author(s):  
Ke Ying Cai ◽  
Ying Mei Zhou
Keyword(s):  
Sodium Hydroxide ◽  
Sodium Borohydride ◽  
Room Temperature ◽  
Nitro Compounds ◽  
Reaction Conditions ◽  
Azoxy Compounds ◽  
Aromatic Nitro Compounds ◽  
Aromatic Nitro ◽  
Actived Carbon

The reduction of aromatic nitro compounds to corresponding azoxy compounds with sodium borohydride was catalyzed by BiO(OH)/actived carbon (AC), which was prepared by equivalent-volume impregnation. The influences of catalyst, sodium borohydride and sodium hydroxide amount were investigated with 10 mmol of nitrobenzene as substrate in methanol at room temperature. The suitable reaction conditions are as follows: 0.2 g of catalyst, 10 mmol of sodium borohydride and 0.1 g of sodium hydroxide. Under the conditions, the seven aromatic nitro compounds were reduced to corresponding azoxy compounds with 27%-90% yields. Moreover, slight deactivation was observed after nine cycles of the catalyst.

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