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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