Journal ArticleDOI
A Review of the Selective Catalytic Reduction of Aromatic Nitro Compounds into Aromatic Amines, Isocyanates, Carbamates, and Ureas Using CO.
Ahmed M. Tafesh,Jens Weiguny +1 more
TLDR
The use of CO as a reductant had been in the past confined to few reactions, but its use in organic synthesis, especially in the reductive carbonylation of nitro aromatics and the oxidative carbonylations of aromatic amines, has increased dramatically as mentioned in this paper.Abstract:
Although the use of CO as a reductant had been in the past confined to few reactions, its use in organic synthesis, especially in the reductive carbonylation of nitro aromatics and the oxidative carbonylation of aromatic amines, has increased dramatically. Since the discovery of CO-induced reduction of nitro groups, there has been a wide spread increase of interest in the application and mechanistic understanding of this reaction. In a major review published in 1988 it was noted, that in practice no studies of the mechanism of N-carbonylation of aromatic nitro compounds with alcohols leading to carbamates have been carried out. This review clearly shows a major change since that publication. Indeed, metal-catalyzed reductive carbonylation of nitro aromatics using CO as reducing agent has been in the past 10 years the subject of intense investigation both in academia and in the chemical industry. Several articles and reviews have covered the subject up to the late 1980s. The authors will concentrate on more recent literature, but sometimes older data will be used to establish an understanding of these reactions. 127 refs.read more
Citations
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Journal ArticleDOI
Ruthenium-Catalyzed Reactions for Organic Synthesis.
Journal ArticleDOI
Chemical and biochemical transformations in ionic liquids
TL;DR: The synthesis of ionic liquids and their applications in various chemical and biochemical transformations, in ecofriendly-milder conditions have been reviewed in this paper, with metal and enzyme catalyzed as well as non-catalyzed reactions in ionic liquid reactions covered with 354 refs.
Journal ArticleDOI
Construction of nitrogen-containing heterocycles by C-H bond functionalization.
Praew Thansandote,Mark Lautens +1 more
TL;DR: An emerging interest among synthetic chemists is to use C-H functionalization to construct the nitrogen-containing core of these heterocycles with respect to the type of C- H bond functionalized.
Journal ArticleDOI
Reduction of Nitro Compounds Using 3d-Non-Noble Metal Catalysts
TL;DR: This review will comprehensively discuss the use of homogeneous and heterogeneous catalysts based on non-noble 3d-metals for the reduction of nitro compounds using various reductants.
Journal ArticleDOI
In Situ-Generated Co0-Co3O4/N-Doped Carbon Nanotubes Hybrids as Efficient and Chemoselective Catalysts for Hydrogenation of Nitroarenes
Zhongzhe Wei,Jing Wang,Shanjun Mao,Diefeng Su,Haiyan Jin,Yihe Wang,Fan Xu,Haoran Li,Yong Wang +8 more
TL;DR: In this article, the earth-abundant nanohybrids Co0/Co3O4@N-doped carbon nanotubes were fabricated via an efficient thermal condensation of d-glucosamine hydrochloride, melamine, and Co(NO3)2·6H2O.
References
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Journal ArticleDOI
The role of alcohol in the catalytic reductive carbonylation of nitrobenzenes to carbamates in the presence of Rh(CO)4− or Ru3(CO)12
Charng-Hing Liu,Chien-Hong Cheng +1 more
TL;DR: The selectivity of N-phenyl carbamate from reductive carbonylation of nitrobenzene using Rh(CO)4− or Ru3(CO 12Et4N+Cl− as the catalyst is much higher in t-butyl alcohol than in primary or secondary alcohols as discussed by the authors.
Journal ArticleDOI
Halide promotion of the formation and carbonylation of μ3-imido ligands. Relevance to the halide promotion of nitroaromatic carbonylation catalysis
TL;DR: In this article, the individual reaction steps that occur during the catalytic carbonylation of nitroaromatics to form isocyanates, carbamates, amines, and ureas are reviewed with focus on stoichiometric organometallic reactions that model the proposed reaction steps.
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Role of alkali halides in the synthesis of nitrogen containing heterocycles by reductive carbonylation of aromatic nitro-derivatives catalysed by Ru3(CO)12
TL;DR: In this paper, the role of the anion and cation in the catalytic mechanism of reductive carbonylation of o-nitrobiphenyl (O-NIPH) is discussed.
Journal ArticleDOI
Synthesis of Nitrogen-containing Compounds by the Interaction of Nitro-compounds with Carbon Monoxide
TL;DR: The methods and catalysts for the synthesis of nitrogen-containing compounds (oximes, Schiff bases, amides, imides, amines, ureas, urethanes, isocyanates, and azo-compounds) by the interaction of nitrocompounds with carbon monoxide are considered in this article.
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New chelating nitrogen ligands and their application to the catalytic reduction of nitrobenzene to aniline. X-ray structure of [Rh(CO)2(BBOM)] (HBBOM = bis(2-benzoxazolyl)methane)
Fabio Ragaini,Maddalena Pizzotti,Sergio Cenini,Alessandro Abbotto,Giorgio A. Pagani,Francesco Demartin +5 more
TL;DR: In this article, the use of two novel chelating nitrogen ligands of the bis(azaheteroaryl)methane type was reported, which gave much better conversions and selectivities with respect to the non-methylated HBBOM, probably due to the fact that the latter can be deprotonated when coordinated to the metal.
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