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pro vyhledávání: '"Maria Daniela C. M. Fleming"'
Autor:
Maria Daniela C. M. Fleming, C. M. M. Da Silva Correa, Miriele Soares Oliveira, E. M. J. Garrido
Publikováno v:
ChemInform. 26
Publikováno v:
J. Chem. Soc., Perkin Trans. 2. :103-107
The products of the addition of toluene-p-sulphonyl iodide to substituted phenylacetylenes (and styrenes) are studied. The regiospecificity and stereoselectivity of trans addition to acetylenes is inferred from 1H n.m.r. spectroscopy. The effect of s
Publikováno v:
ChemInform. 18
Publikováno v:
Free Radicals in Synthesis and Biology ISBN: 9789401068925
The effect of substituents and temperature on the reactivity of a) arylacetylenes towards arenesulphonyl radicals and b) ar enesulphonyl chlor ides towards substituted phenyl radicals, was studied. Arenesulphonyl radicals were prepared from photolysi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8cf1af44fa9240103c584409aca2b257
https://doi.org/10.1007/978-94-009-0897-0_24
https://doi.org/10.1007/978-94-009-0897-0_24
Substituent effects on the free-radical addition reactions of arylthiyl radicals with arylacetylenes
Autor:
Maria Daniela C. M. Fleming, Osamu Ito
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :689
Absolute rate constants for addition reactions of arylthiyl radicals (YC6H4S˙) to arylacetylenes (XC6H4CCH) have been determined by a flash-photolysis method. The rate constants (in dm3 mol–1 s–1) vary from 1.0 × 105(X =m-NO2 and Y =p-MeO) to 1
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2 (03009580); Jun1989, Issue 6, p689-693, 5p
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2 (03009580); Feb1987, Issue 2, p103-107, 5p
Autor:
F. Minisci
Free-radical reactions have been for long time the domain of the physical chemists and the basic chemical industry (polymerization of vinyl monomers, oxidation by molecular oxygen, chlorination of methane etc.), where the use of simple molecules and