Výsledky vyhledávání - "Joan Ellison"

Periodical

Autor: RODGERS, JOAN ELLISON

Publikováno v: Psychology Today. Mar/Apr2014, Vol. 47 Issue 2, p72-79. 8p. 3 Color Photographs.

Tautomeric pyridines. Part XXIV. Tautomeric equilibria for 3-ethoxycarbonyl-, 3-ethoxycarbonyl-6,7-methylenedioxy-, and 3-cyano-4-quinolone

Autor: Alan R. Katritzky, Joan Ellison, Zoltán Mészáros, Judit Frank

Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 100:30-34

Ultraviolet spectra and pKa values for the title compounds and their O- and N-ethyl derivatives show that in each case the quinolone form is favoured in aqueous solution. The results are compared qualitatively with those for 4-quinolone and for findi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::103b5662a31543ddaa1a0e38c61194ec
https://doi.org/10.1002/recl.19811000108

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Ionisation chimique De Structures Hydroxypyridines

Autor: Robert Flammang, Joan Ellison, A. Maquestiau, Y. Van Haverbeke, Judit Frank, H. Mispreuve, Alan R. Katritzky, Zoltán Mészáros

Publikováno v: Bulletin des Sociétés Chimiques Belges. 88:395-414

“Collision Induced Dissociation/Mass analyzed Ion Kinetic Energy” (CID/MIKE ) spectrometry is applied to study the structure of cations generated by the chemical ionisation of hydroxypyridines and related compounds. The method described allow, in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6fb43839f1d4bf46e2436dd88f57a8ce
https://doi.org/10.1002/bscb.19790880604

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A photoelectron spectral study of the vapour phase tautomerism of 2- and 4-quinolone

Autor: Joan Ellison, Judit Frank, Claude Guimon, Geneviève Pfister-Guillouzo, Alan R. Katritzky

Publikováno v: Liebigs Annalen der Chemie. 1981:366-375

PE spectral comparisons of the title compounds with the corresponding O- and N-methyl fixed derivatives show that both 2- and 4-quinolone exist as the NH forms in the vapour phase: none of the OH tautomers could be detected. Tautomere Pyridine, 261).

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0e45563edf324eda8ed24c9f97f2682a
https://doi.org/10.1002/jlac.198119810304

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1,3-Dipolar character of six-membered aromatic rings. Part 44. Further examples of troponoid synthesis

Autor: Gebran J. Sabongi, Julie Banerji, Nicholas Dennis, Joan Ellison, Alan R. Katritzky, Ernst-Ulrich Würthwein

Publikováno v: J. Chem. Soc., Perkin Trans. 1. :2528-2534

Adducts formed from 3-hydroxypyridine and two moles of the dipolarophiles, acrylonitrile and methyl acrylate, are converted by quaternisation and Hofmann elimination into 4-cyanotropolone and 4-methoxycarbonyltropolone. Overall yields of ca. 25% are

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c2bd3384e0075fc7477972a8142d5253
https://doi.org/10.1039/p19790002528

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13C NMR specta of 4-quinolones and related compounds

Autor: Piroska Rákóczy, Judit Frank, Alan R. Katritzky, Eszter Gács-Baitz, Lajos Radics, Joan Ellison

Publikováno v: Organic Magnetic Resonance. 16:280-284

Complete assignments are made for 23 4-quinolones and related compounds. Literature data are used to calculate chemical shifts for 17 of these compounds: calculated and experimental shifts are in excellent agreement—all within 5 ppm for nine of the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::199d342490d6b24365c228993fd14259
https://doi.org/10.1002/mrc.1270160406

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