Citation: Ali Reza Kiasat, Roya Mirzajani, Fakhri Ataeian, Mehdi Fallah-Mehrjardi. Immobilized silver nanoparticles on silica gel as an efficient catalyst in nitroarene reduction[J]. Chinese Chemical Letters, ;2010, 21(9): 1015-1019. doi: 10.1016/j.cclet.2010.05.024 shu

Immobilized silver nanoparticles on silica gel as an efficient catalyst in nitroarene reduction

a Chemistry Department, College of Science, Shahid Chamran University, Ahvaz 61357-4-3169, Iran;
b Marine Chemistry Department, Khoramshahr Marine Science and Technology University, Khoramshahr 669, Iran

Received Date: 18 November 2009

Fund Project: Partial supports for this work by Shahid Chamran University Research Council are gratefully acknowledged.

Nanoparticles have properties that can be fine-tuned by their size as well as shape. Hence, there is significant current interest in preparing nano-materials of small size dispersity and to arrange them in close-packed aggregates. This letter describes a way of synthesising silver nanoparticles and their protection to aggregate by silica gel. The combination of catalytic quantities of immobilized silver nanoparticles with reductive ability of NaBH₄ efficiently reduces aromatic nitroarenes to the corresponding amines in aqueous medium. Noteworthy is that highly chemoselective reactions were achieved in the presence of other functional groups such as halogen and carboxylic acid groups. The silver particles immobilized on silica gel are stable in the presence of oxygen for several months.
- Silver nanoparticle,
- Reduction,
- Aromatic nitro compounds,
- Aromatic amines,
- Sodium borohydride
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