Výsledky vyhledávání - "D. C. Warrell"

Catalytic tritiation studies using tritium NMR spectroscopy

Autor: E. A. Evans, John A. Elvidge, John R. Jones, D. C. Warrell

Publikováno v: Journal of Radioanalytical Chemistry. 64:41-45

The development of tritium nuclear magnetic resonance spectroscopy now makes it possible to determine the tritium distribution in virtually any organic compound at the millicurie level of radioactivity. Results of catalytic experiments show that in s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3249119db66690f0d31d2942548f8e42
https://doi.org/10.1007/bf02518339

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27. Patterns of labelling in [3H]-steroids by tritium nuclear magnetic resonance spectroscopy

Autor: E. A. Evans, John R. Jones, D. C. Warrell, R.B. Mane, John A. Elvidge

Publikováno v: Journal of Steroid Biochemistry. 9:818

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::428f2e52779dd4349047d122bb90d6df
https://doi.org/10.1016/0022-4731(78)90727-6

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Tropones. Part I. The action of alkali on 2-halogenotropones

Autor: E. J. Forbes, D. C. Warrell, W. J. Fry

Publikováno v: Journal of the Chemical Society C: Organic. :1693

When treated with concentrated aqueous sodium hydroxide, 2-chlorotropone yields only benzoic acid. With more dilute alkali, salicylaldehyde (up to 40%) is also formed. 2-Bromo- and 2-iodo-tropone behave similarly. Deuteriation studies have shown that

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2f93c6fb3e70945dcdd17dd6a5bd974e
https://doi.org/10.1039/j39670001693

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Tropones. Part III. The mechanism of the production of m-hydroxybenzaldehydes from 2-chlorotropones

Autor: E. J. Forbes, D. C. Warrell, M. J. Gregory

Publikováno v: Journal of the Chemical Society C: Organic. :1969

Using a variety of oxidising agents, nitro-2-chlorotropones are converted into m-hydroxybenzaldehydes in which all the substituents of the original tropone are retained. Thus, 2-chloro-7-nitrotropone gives 4-chloro-3-hydroxy-2-nitrobenzaldehyde, and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4836815fab6c83582f996d6ec64edd6d
https://doi.org/10.1039/j39680001969

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Rearrangement of polyaryl-bicyclo[2,2,1]hept-2-en-7-ones and bicyclo-[3,2,0]hept-3-en-2-ones

Autor: D. C. Warrell, R. C. Cookson

Publikováno v: Journal of the Chemical Society C: Organic. :1391

Sulphuric acid rearranges 5-aryl-1,4-dimethyl-2,3-diphenylbicyclo[2,2,1]hepten-7-ones into 6-aryl-1,3-dimethyl-4,5-diphenylbicyclo[3,2,0]hept-3-en-2-ones. Since the pure endo-(V) or exo-[2,2,1]-isomer (VI) gives a mixture of exo-(VII) and endo-[3,2,0

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0622d6c99db23cc6e155db844c997fea
https://doi.org/10.1039/j39670001391

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Tropones. Part II. The nitration of 2-chlorotropone: a new rearrangement

Autor: D. C. Warrell, E. J. Forbes

Publikováno v: Journal of the Chemical Society C: Organic. :1964

When treated with nitric acid in acetic acid 2-chlorotropone gave 2-chloro-7-nitrotropone as the major product. In addition, 2-chloro-4,6-dinitrophenol and two m-hydroxybenzaldehydes were obtained together with picric acid and 2,5-dinitrobenzoic acid

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::db6069696b5437f47ae2ef6d0cc549b2
https://doi.org/10.1039/j39680001964

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