Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Mikolaj Jawdosiuk"'
This book explores various topics relevant to understanding the complexities of biological effects generated by solar radiation. Solar-energy-absorbing substances are evaluated, including sunscreen agents, and their influence on cancers and diseases.
Publikováno v:
Zeitschrift für Naturforschung B. 55:109-126
Stable di-tert-alkylnitroxyl radicals, tert-butyl-tert-pentylnitroxyl (4a), di-tert-pentylnitroxyl (4b) and tert-octyl-tert-pentylnitroxyl (4c), the homologs of di-tert-butylnitroxyl (1), were synthesized from tert-alkyl amines 7a-c via the 3-tert-al
Publikováno v:
Journal of the American Chemical Society. 107:594-603
L'irradiation UV a basse temperature de l'azido-1 adamantane dans diverses matrices conduit a l'aza-4 homodamantene-3 caracterise par les spectres de vibration et electroniques. Formation du dimere a temperature plus elevee. Determination de l'energi
Publikováno v:
Journal of the American Chemical Society. 101:2355-2359
Die Carbanionen der Verbindungen (II), (IV), (VI), (VIII) bzw. (X) reagieren mit den Nitropropanen (I) unter Bildung der Dimerisierungsprodukte (III), (V), (VII), (IX) bzw. (XI); Kupplungsprodukte werden nicht gefunden.
Publikováno v:
Free Radical Biology and Medicine. 6:131-139
Electrochemical data were acquired for several categories of anthelmintic agents, namely, iminium-type ions, metal derivatives and chelators, quinones and iminuquinones, and nitroheterocytes. Reductions usually were in the favorable range of +0.2 to
Publikováno v:
The Journal of Organic Chemistry. 47:1879-1884
Autor:
Peter Kovacic, Mikolaj Jawdosiuk
Publikováno v:
Synthetic Communications. 13:53-62
Bridgehead primary amines in the bicyclic and tricyclic category have served as important intermediates in organic synthesis. When transformed into azo compounds, they can be used as a source of bridgehead free radicals.1 These amines also serve as p
Publikováno v:
Bioorganic Chemistry. 15:423-441
On binding to cell-wall enzyme, β-lactams form precursors of conjugated iminium species that apparently possess favorable reduction potentials based on studies with model compounds. The models used were iminium salts of Δ1-pyrroline-2-carboxylic ac
Autor:
G. J. Radziszewski, Josef Michl, Robert D. Miller, Vlasta Bonacic-Koutecky, Peter Kovacic, Mikolaj Jawdosiuk, John W. Downing, Frederick H. Walker, Kenneth B. Wiberg
Publikováno v:
Pure and Applied Chemistry. 55:315-321
Publikováno v:
Tetrahedron. 38:1059-1067
The reaction of mono-enolate anions with O2NCMe2X where X = Cl, NO2, p-MePhSO2 yield coupling (RCOCH(R′)(CMe2NO2) and enolate dimerization products (RCOCH(R′)CH(R′)COR) by free radical chain mechanisms involving bimolecular substitution or elec