Výsledky vyhledávání - "Peter B. Coulter"

ChemInform Abstract: Imines and Derivatives. Part 24. Nitrone Synthesis by Imine Oxidation Using Either a Peroxyacid or Dimethyldioxirane

Autor: Peter B. Coulter, V. E. Wilson, W. B. Jennings, Derek R. Boyd, M. R. Mcguckin, Narain D. Sharma

Publikováno v: ChemInform. 21

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bc56c51b990b354988f12decfd307c7b
https://doi.org/10.1002/chin.199023122

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Imines and derivatives. Part 24. Nitrone synthesis by imine oxidation using either a peroxyacid or dimethyldioxirane

Autor: W. Brian Jennings, Valerie E. Wilson, Derek R. Boyd, M. Rosaleen McGuckin, Narain D. Sharma, Peter B. Coulter

Publikováno v: Journal of the Chemical Society, Perkin Transactions 1. :301

The oxidation of N-alkyl imines by m-chloroperoxybenzoic acid to yield nitrones was facilitated by (i) the presence of C-aryl substituents, (ii) steric inhibition of attack at the imino C-atom, (iii) electron donating para-substituents on the C-aryl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::94b384cdc444f7a976d611efeb86ad4c
https://doi.org/10.1039/p19900000301

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Dynamic stereochemistry of imines and derivatives: 15—Carbon-13 NMR studies of aryl-substituted imines and oxaziridines

Autor: Peter B. Coulter, W.Brian Jennings, Valerie E. Wilson, Derek R. Boyd

Publikováno v: Organic Magnetic Resonance. 21:279-286

13C chemical shifts for several series of cis- and trans-N-alkylimines and oxaziridines bearing para-substituted C-phenyl rings are reported and correlated with dual substituent parameters. The 13CN and oxaziridine ring carbon shifts correlate primar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d675ef64919b093aba1c6663d02b6e5b
https://doi.org/10.1002/omr.1270210412

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Normal, abnormal and pseudo-abnormal reaction pathways for the imine-peroxyacid reaction

Autor: Narain D. Sharma, Derek R. Boyd, Peter B. Coulter, W.Brian Jennings, Valerie E. Wilson

Publikováno v: Tetrahedron Letters. 26:1673-1676

Steric and mesomeric effects have a marked influence upon the formation of oxaziridine (normal pathway) or nitrone (abnormal pathway) products from the imine-peroxyacid reaction; n.m.r. studies of the thermal isomerization of oxaziridines to nitrones

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::14901c3358acbd34d4af677853f2d1b1
https://doi.org/10.1016/s0040-4039(00)98582-4

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ChemInform Abstract: AUTOXIDATION REACTIONS OF IMINES TO FORM OXAZIRIDINES AND AMIDES

Autor: Barbara J. Auret, Peter B. Coulter, Derek R. Boyd

Publikováno v: Chemischer Informationsdienst. 15

The formation of oxaziridines and the isomeric amides in equal amounts by the spontaneous autoxidation of several liquid imines via peroxyimidic acid intermediates is reported.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2b49959f407ecf1e06cc309ecada0d39
https://doi.org/10.1002/chin.198431207

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Aryl substituent effects upon the thermal isomerization of n-alkyl oxaziridines to nitrones

Autor: Valerie E. Wilson, W.James Hamilton, Peter B. Coulter, Derek R. Boyd, W.Brian Jennings

Publikováno v: Tetrahedron Letters. 25:2287-2288

The results of a kinetic study of the thermal isomerization of oxaziridines derived from para -substituted C-arylaldimines and C-diarylketimines to the isomeric nitrones is reported.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6e261ec66aaeafb0eea8acbd05be7ecc
https://doi.org/10.1016/s0040-4039(01)80234-3

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Dynamic stereochemistry of imines and derivatives. Part 18. Photosynthesis and photoracemization of optically active oxaziridines

Autor: Rose M. Campbell, Derek R. Boyd, W. Brian Jennings, David C. Neill, James Grimshaw, Peter B. Coulter

Publikováno v: Journal of the Chemical Society, Perkin Transactions 1. :849

Optically active oxaziridines have been synthesized with a maximum optical yield of 31% by photoisomerization (λ > 300 nm) of achiral aldo- and keto-nitrones in the presence of the chiral solvent (+)-(S) or (–)-(R)-2,2,2-trifluoro-1-phenylethanol.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4733906f3824ac2187a6d263aa833594
https://doi.org/10.1039/p19850000849

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The synthesis of NH aldimines and derivatives by spontaneous and base-catalysed decomposition of oxaziridines

Autor: Michael E. Stubbs, Norris Thompson, Derek R. Boyd, Peter B. Coulter, Narain D. Sharma, Robert Hamilton

Publikováno v: Journal of the Chemical Society, Perkin Transactions 1. :2123

A range of oxaziridines containing N-methylene substituents has been synthesized by peracid oxidation of the corresponding fluorenylidene N-alkylamines. Spontaneous and tertiary amine base-catalysed decomposition of the oxaziridines into unstable NH

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7dc6fcca029e6939c409eec5606560d3
https://doi.org/10.1039/p19850002123

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