Zobrazeno 1 - 10 of 83 pro vyhledávání: '"J. H. RIDD"'
1
Tyrosine nitration and peroxonitrite (peroxynitrite) isomerisation: 15N CIDNP NMR studies
Autor: J. H. Ridd, Trevor J. Rutherford, D. M. Short, Anthony R. Butler
Publikováno v: Chemical Communications. :669-670
In the presence of tyrosine, peroxonitrous acid forms nitrite, nitrate and 3-nitrotyrosine by radical processes.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ea821586c8711e46eaf8f47fba4decba
https://doi.org/10.1039/a700676d
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4
The Dependence of Diazotisation Rates on Acidity
Autor: J. H. Ridd
Publikováno v: Journal of the Society of Dyers and Colourists. 81:355-358
The variation in the rate of diazotisation of aniline in aqueous perchloric acid is described for the range of acidity from pH 3 to 9–M acid. At low acidities (pH 1–3), the rate of diazotisation decreases with acidity, but at about pH 1 the rate
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5afd870ec10b0a6caeeff92f45c34087
https://doi.org/10.1111/j.1478-4408.1965.tb02674.x
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6
Recent Work on the Mechanism of Diazotisation
Autor: J. H. Ridd
Publikováno v: Journal of the Society of Dyers and Colourists. 75:285-289
A reinvestigation of the kineties of diazotisation, combined with a study of the exchange of 18O between nitrous acid and water, has shown that the diazotisation of aniline in dilute mineral acids occurs by the interaction of the free amine with nitr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b8f039e6c84d2c4de31980623e01aeb2
https://doi.org/10.1111/j.1478-4408.1959.tb02326.x
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7
Substituent effects of positive poles in aromatic substitution. Part VI. The nitration of substituted anilinium ions through proton loss from the –NH3+group
Autor: S. R. Hartshorn, J. H. Ridd
Publikováno v: J. Chem. Soc. B. :1068-1074
The rate profile for the nitration of 2-chloro-4-nitroaniline in 85–100% sulphuric acid accords with a reaction of the free amine, and this interpretation is consistent with the rate of nitration relative to other aniline derivatives and with the s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::81dcdcc3380b8db399ff9f0a7b4d0ebd
https://doi.org/10.1039/j29680001068
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9
Inductive and field effects in aromatic substitution. Part II. Nitration of benzotrichloride and βββ-trichloroethylbenzene
Autor: J. H. Ridd, G. Grynkiewicz
Publikováno v: J. Chem. Soc. B. :716-719
The products of nitration of PhCCl3 and PhCH2·CCl3 have been determined for reaction under homogeneous conditions. The corresponding partial rate factors have been determined by competitive experiments in which the reactivities of these substrates a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::766fed9c0645aa6d4fe5f5791a86558c
https://doi.org/10.1039/j29710000716
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10
Substituent effects of positive poles in aromatic substitution. Part V. Variation in the substituent effect of the –NH3+group in aromatic nitration
Autor: S. R. Hartshorn, J. H. Ridd
Publikováno v: J. Chem. Soc. B. :1063-1067
As the acidity of the medium is decreased, the yield of meta-substitution in the nitration of anilinium salts decreases, and that of both ortho- and para-substitution increases; over the range 98–82% sulphuric acid, the yield of meta-substitution f
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cabdd6d95fb1963570bb31656c474bdb
https://doi.org/10.1039/j29680001063
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