By D.L.H. Williams

ISBN-10: 0444517219

ISBN-13: 9780444517210

Due to the fact that 1988, there was a lot literature released at the chemistry of nitric oxide, really within the box of S-nitrosation and the chemistry of S-nitroso compounds. Written through a chemist for the chemistry neighborhood, this ebook presents an replace of the chemistry of nitrosation reactions, facing either the substitute and mechanistic points of those reactions. It additionally appears on the chemistry of nitric oxide in terms of the superb organic homes of this easy diatomic molecule, which have been unknown till round 1990. * offers an replace on formerly released literature on nitric oxide chemistry* comprises chapters on reagents for nitrosation, nitrosation at nitrogen, aliphatic and fragrant carbon, oxygen, sulfur and steel centres* seems at scorching examine issues similar to synthesis, houses and reactions of s-nitrosothiols

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For example, whilst both aniline and 4-nitroaniline behave as 'typical amines', introduction of a further nitro group (2,4-dinitroaniline) results in the total loss of nucleophilic catalysis [188]. Whilst no isotope effect or base catalysis studies have been attempted here, it does appear that 2,4-dinitroaniline behaves in an 'amide fashion'. In the same study there was also no nucleophile catalysis for the nitrosation of urea, sulfamic acid and the hydrazinium ion. Nitrosation of peptides occurs quite readily.

The reaction with urea itself generates nitrogen and carbon dioxide, Eq. g. in aromatic nitration, in denitrosation to prevent renitrosation and to stop explosive side reactions in the synthesis of alkyl nitrates from alcohols and nitric acid. Urea is not a particularly efficient nitrous acid trap, but has the advantage of a high water solubility. g. hydrazine and azide ion [188] which will be discussed in more detail later. The nitrosation of amides is generally characterised by the absence of nucleophilic catalysis which is pronounced for the nitrosation of amines.

63), [83]. Similarly, silver ion allows the formation of the CuCl2(aq) + NO ^^=^ Cu(II)NO complex Cu(II)NO complex + Et2NH • (63) Cu(I) complex + Et2NNO nitrosamine from nitric oxide, possibly via the intermediate formation of a cation radical, Eq. (64), [84]. Iodine will generate nitrosyl iodide (a good R2NH Ag"^ • +• R2NH MO i l i ^ R^NNO + H+ (64) nitrosating agent) from nitric oxide, again allowing conventional electrophilic nitrosation to occur, Eq. (65), [85]. Reagents Ejfecting Nitrosation 2NO + I2 ^^=^ 2IN0 R^NH ^ R2NNO 25 (65) A reaction of nitric oxide with another free radical is believed to be important in the context of the in vivo biological properties of nitric oxide.

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Nitrosation Reactions and the Chemistry of Nitric Oxide by D.L.H. Williams


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