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Reduction of aromatic nitro compounds to N-phenylhydroxylamines ... by William Henry James

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Published .
Written in English


Book details:

The Physical Object
Pagination[1], 67 pages
Number of Pages67
ID Numbers
Open LibraryOL25937865M
OCLC/WorldCa7897346

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Electrochemical investigations of intermediates in electroreduction of aromatic nitro and nitroso compounds in DMF. Journal of Electroanalytical Chemistry and Interfacial Electrochemistry , Cited by:   Golden distinction: With an Au/TiO 2 catalyst, the formation of condensation products during the hydrogenation of aromatic nitro compounds is avoided. Macrokinetic experiments and in situ IR measurements, which showed that nitrosobenzene is generated in only small amounts and that hydroxylamine and nitrosobenzene interact strongly with the catalyst surface, led to the proposal of a Cited by: Categories: N-H Bond Formation > Reduction of nitro compounds. Recent Literature. The combination HSiCl 3 and a tertiary amine enables a mild, metal-free reduction of both aromatic and aliphatic nitro groups to amines. The reaction is of wide general applicability and tolerates many functional groups. Reduction with LiAlH 4 Aromatic nitro-comopunds on reduction with LiAlH 4 give azo compounds. Reductive removal of nitro group Nitro group can be removed from aromatic ring via reduction to amine followed by deoxidization with HNO 2 and then reductive removal of the diazonium group using sodium borohydride or hypo phosphorus acid/Cu+ mixture.

  Alireza Khorshidi, Bahareh Ghorbannezhad, A highly effective Ag–RANEY® nickel hybrid catalyst for reduction of nitrofurazone and aromatic nitro compounds in aqueous solution, RSC Advances, /C7RAK, 7, 48, (), ().   A new, mild, metal-free, HSiCl3-mediated reduction of both aromatic and aliphatic nitro groups to amines that is of wide general applicability, tolerant of many functional groups, and respectful of the stereochemical integrity of stereocenters is reported. A novel strategy for the preparation of arylhydroxylamines: chemoselective reduction of aromatic nitro compounds using bakers' yeast F. Li, J. Cui, X. Qian and R. Zhang, Chem. Commun., ,   A mild, environmentally friendly method for reduction of aromatic nitro group to amine is reported, using zinc powder in aqueous solutions of chelating ethers. The donor ether acts as a ligand and also serves as a co-solvent. Water is the proton source. This procedure is also a new method for the activation of zinc for electron transfer reduction of aromatic nitro compounds.

Question 2 1 pts The reduction of aromatic nitro-compounds using molecular hydrogen requires a metal catalyst. ⓔ True False 1 pts Get more help from Chegg Get help now from expert Chemistry . It showed highly regio- and chemoselectivity for the reduction of substituted aromatic dinitro compounds and nitro compounds with carbonyl groups. The catalyst also showed promise for the chemoselective reduction of α,β-unsaturated carbonyls to allylic alcohols. In all the cases, good to excellent yield is obtained with minimal reaction time.   Reduction of nitro compounds occurs readily with a variety of reducing agents and such reductions afford a particularly useful synthesis of aromatic amines (Section B): The reduction of a nitro compound to an amine requires six equivalents of reducing agent: \[\ce{R-NO_2} + 6 \ce{H}^\oplus + 6 \ce{e}^\ominus \rightarrow \ce{RNH_2} + 2 \ce. INTRODUCTION. Nitroaromatic compounds are among the largest and most important groups of industrial chemicals in use today. These compounds are organic molecules that consist of at least one nitro group (-NO 2) attached to an aromatic vast majority are synthetic, although several biologically produced nitroaromatic compounds have been identified.