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Reduction of Nitroarenes with Hydrazine Monohydrate by Activated Nickel Nitrate-Zinc Catalyst

Yun, Tae Ho ; Pyo, Sang Hyeun LU orcid ; Park, Moon Kyeu and Han, Byung Hee (1994) In Journal of the Korean Chemical Society 38(5). p.397-403
Abstract
An activated catalyst prepared from a mixture of nickel nitrate hexahydrate with zinc in dry ethanol under reflux showed exceptional catalytic activity for the reduction of nitroarenes to the corresponding azoxy compounds exclusively in the presence of hydrazine monohydrate. However, when nickel nitrate hexahydrate was replaced by nickel chloride dihydrate with zinc, only the aminoarenes were formed in high yields. With unactivated catalyst, the reduction reaction from a mixture of nitroarenes, nickel nitrate or chloride, excess zinc, and hydrazine monohydrate gave the corresponding azo, azoxy, and amino compounds in much lower yields.
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author
; ; and
publishing date
type
Contribution to journal
publication status
published
in
Journal of the Korean Chemical Society
volume
38
issue
5
pages
8 pages
publisher
Korean Chemical Society
ISSN
1017-2548
language
English
LU publication?
no
id
61692881-77e7-41a0-91ea-7de868916d56
date added to LUP
2025-10-29 10:19:25
date last changed
2025-11-10 13:27:42
@article{61692881-77e7-41a0-91ea-7de868916d56,
  abstract     = {{An activated catalyst prepared from a mixture of nickel nitrate hexahydrate with zinc in dry ethanol under reflux showed exceptional catalytic activity for the reduction of nitroarenes to the corresponding azoxy compounds exclusively in the presence of hydrazine monohydrate. However, when nickel nitrate hexahydrate was replaced by nickel chloride dihydrate with zinc, only the aminoarenes were formed in high yields. With unactivated catalyst, the reduction reaction from a mixture of nitroarenes, nickel nitrate or chloride, excess zinc, and hydrazine monohydrate gave the corresponding azo, azoxy, and amino compounds in much lower yields.}},
  author       = {{Yun, Tae Ho and Pyo, Sang Hyeun and Park, Moon Kyeu and Han, Byung Hee}},
  issn         = {{1017-2548}},
  language     = {{eng}},
  number       = {{5}},
  pages        = {{397--403}},
  publisher    = {{Korean Chemical Society}},
  series       = {{Journal of the Korean Chemical Society}},
  title        = {{Reduction of Nitroarenes with Hydrazine Monohydrate by Activated Nickel Nitrate-Zinc Catalyst}},
  volume       = {{38}},
  year         = {{1994}},
}