15N Nuclear polarisation in the rearrangement of 2,6-dichloro-N-nitroaniline and 2,6-dibromo-N-nitroaniline
نویسندگان
چکیده
منابع مشابه
Photoexcitation dynamics of p-nitroaniline and N,N-dimethyl-p-nitroaniline in 1-alkyl-3-methylimidazolium-cation based ionic liquids with different alkyl-chain lengths.
Photoexcitation dynamics of p-nitroaniline (pNA) and N,N-dimethyl-p-nitroaniline (DMpNA) in 1-alkyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([Cnmim][NTf2]) with different alkyl chain lengths (from C2 to C12) was investigated using transient absorption spectroscopy. The internal conversion rate from the excited state to the ground state was estimated from bleach recovery around th...
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The nitrocellulose based materials are degraded in a natural way during their storage; the processes of degradation are accelerated when the temperature or the humidity increases. To prevent this decomposition, these materials include in their composition stabilising agents which retain the nitro groups and avoid the autocatalytic degradation of nitrocellulose. The aim of the present work is to...
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Methoxymethylation of a variety of alcohols was performed using formaldehyde dimethyl acetal in the presence of 1,3-dichloro-5,5-dimethyl hydantoin [DCDMH] and Poly N,N′-dibromo-N-ethyl naphthyl-2,7-disulfonamide [PBNS] as catalysts at room temperature and under solvent-free conditions. Our experiments show that primary and secondary alcohols can be smoothly converted into the corresponding MOM...
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A 15 year old boy died after ingestion of an unknown amount of p-nitroaniline with seizures and extremely wide pupils. A MetHb concentration of 36.8 % was photometrically determined in the blood sample collected during autopsy four days after death. By HPLC-DAD and GC-MS p-nitroaniline (4.2 μg/ml) and its metabolites 2hydroxy-4-nitroaniline (1.5 μg/ml), p-nitroacetanilide (0.38 μg/ml), p-phenyl...
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History has had its periods of magnificent excess, when vast amounts of human effort were devoted to cultural projects that transcended the necessities of survival and commerce. Obvious examples begin with the construction of the great pyramids. Much later, Europe's cathedrals were the ultimate commitment of society's surplus energy to expressions of the spirit. The explorations of the remote r...
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ژورنال
عنوان ژورنال: Canadian Journal of Chemistry
سال: 1986
ISSN: 0008-4042,1480-3291
DOI: 10.1139/v86-188