Nitrogen-containing organic compounds

Functional Group Vibrational Mode and Strength Wavenumber (cm- ) 

Stretch overlapping the CH and OH bands (2600-3200 cnr ) trying to sort out the methyl and CH bands from the OH and NH bands is not practical. The carbonyl stretch is typical of the carboxylate ion, shifted to a lower wavenumber than a typical carbonyl stretch, broader and overlapped by the NH bend. The symmetric NH bend and symmetric carboxylate ion stretch can be seen at 1500 and 

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Given a nitrogen containing organic compound such as an amide a nitnle or a nitro compound how is the correct oxidation state of the desired amine to be achieved" ... 

Almost any nitrogen containing organic compound can be reduced to an amine The syn thesis of amines then becomes a question of the availability of suitable precursors and the choice of an appropriate reducing agent... 

Heteropolyacids (HPA) are the unique class of inorganic complexes. They are widely used in different areas of science in biochemistry for the precipitation of albumens and alkaloids, in medicine as anticarcinogenic agents, in industry as catalysts. HPA are well known analytical reagents for determination of phosphoms, silica and arsenic, nitrogen-containing organic compounds, oxidants and reductants in solution etc. 

Table 7-9 Atmospheric nitrogen-containing organic compounds...

Formation is dependent on the interaction of nitrogen-containing organic compounds with nitrosating agents, such as oxides of nitrogen. 

Due to its marked atom economy, the intramolecular hydroamination of alkenes represents an attractive process for the catalytic synthesis of nitrogen-containing organic compounds. Moreover, the nitrogen heterocycles obtained by hydroamination/cyclisation processes are frequently found in numerous pharmacologically active products. The pioneering work in this area was reported by Marks et al. who have used lanthanocenes to perform hydroamination/cyclisation reactions in 1992. These reactions can be performed in an intermolecular fashion and transition metals are by far the more efficient catalysts for promotion of these transformations via activation of the... 

There are three major sources of the NO formed in combustion (1) oxidation of atmospheric (molecular) nitrogen via the thermal NO mechanisms (2) prompt NO mechanisms and (3) oxidation of nitrogen-containing organic compounds in fossil fuels via the fuel-bound NO mechanisms [1], The extent to which each contributes is an important consideration. 

Isomerization of unsaturated nitrogen-containing organic compounds, containing C=C double bonds, has been investigated less intensely than the isomerization of other related unsaturated compounds. Photoisomerization has been reported upon irradiation of a benzene solution of aqueous solution of its hydrochloride, and of the methiodide salt under nitrogen atmosphere. The corresponding cis-isomers are formed.308,309... 

However, the reaction itself is applicable to the synthesis of a large number of valuable nitrogen-containing organic compounds. 

A New Synthetic Method for Nitrogen Containing Organic Compounds Z. Yoshida, Kagaku, Zokan (Kyoto), 1979, 61-76. 

Just as ammonia, NHif is a weak Lewi. base, there is a large group of nitrogen-containing organic compounds that behaves like weak bases and is known as ... 

Ito MM, Akita K, Inoue H. Wet oxidation of oxygen and nitrogen containing organic compounds catalyzed by cobalt(III) oxide. Ind Eng Chem Rev 1989 28(suppl 7) 894-899. 

Most nitrogen-containing organic compounds are liable to oxidation on reaction with DIB. Simple N-H dehydrogenations constitute a major area of applications, often accompanied by further transformation. 

Since many nitrogen-containing organic compounds are explosive, some mention is appropriate here of possible hazards in working with nitromethane. Occasionally, some evidence of decomposition, in the form of mild evolution of heat and gases, has been observed by the author in concentrated, acidified aldose-nitromethane reaction residues from which the bulk of the nitroalcohols had been separated. Such residues usually have been either discarded at once or stored at —20° when further crystallization was anticipated. Generally, it may be stated that the aldose-nitromethane condensation reaction does not involve serious explosion hazards. 

The compounds best known for their bitter taste belong to the alkaloids and glycosides. Alkaloids are basic nitrogen-containing organic compounds that are derived from pyridine, pyrrolidine, quinoline, isoquinoline, or purine. Quinine is often used as a standard for testing bitterness (Figure 7-13). 

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