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Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1283-1287
Kinetic data for solvolyses of α-methylthioacetyl chloride, phenylthioacetyl chloride and thiophene-2-acetyl chloride in at least 33 aqueous solvent systems including 2,2,2-trifluoroethanol–ethanol solvent were determined at 10 °C by a conductime
The formation of olefins and alkynes from the reaction of hydroxyl radical and carbonaceous material
Autor:
Lavrent Khachatryan, Barry Dellinger
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :779-783
Using model systems and laser photolysis techniques, we have examined the mechanism of interaction of hydroxyl radicals with carbonaceous materials. The formation of ppb-level concentrations of methane, ethylene, acetylene, and propylene (prop-1-ene)
Publikováno v:
Scopus-Elsevier
The synthesis of clarithromycin from erythromycin A oxime derivatives has been investigated in order to improve the antibacterial and pharmacokinetic properties of erythromycin A. In this study, the protection and the methylation reactions of each of
Autor:
Martin J. P. Harger
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :489-493
In reactions with R2NH (R = Me or Et) in CHCl3 the PS substrate Ph2CHP(S)(NMe2)Cl differs markedly from its PO counterpart: the rate of substitution is increased much more by a 4-nitro substituent but is also more sensitive to the bulk of the amine,
Autor:
Hermenegildo García, Pilar Formentin, Juan C. Scaiano, María J. Sabater, Michelle N. Chretien
Publikováno v:
Scopus-Elsevier
Photolysis of p-toluidides of methacrylic (1a) and cyclohex-2-enecarboxylic (1b) acids in nitrogen-saturated cyclopentane solution yields the corresponding 2-quinolones with over 90% chemoselectivity at almost complete conversion. In the presence of
Autor:
Ingrid Schaller, Monika Plass
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :186-191
The equilibrium constants for the association of a fluorinated alcohol, 1,1,1,3,3,3-hexafluoropropanol with amino acid and peptide derivatives dissolved in methylene chloride were calculated. The mathematical approach for the determination of the equ
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :2267-2270
The relative nucleophilicity of chloride, bromide and iodide anions in [bmim][BF4] ionic liquid has been measured by studying their reaction with methyl p-nitrobenzenesulfonate ([bmim] = 1-butyl-3-methylimidazolium cation). It has been found that iod
Autor:
Rajni Garg, Corwin Hansch
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :476-479
Evidence is summarized to show via quantitative structure–activity relationships (QSAR) that the aromatic CH2OH group when conjugated with electron-releasing substituents displays toxic effects that suggest a radical reaction mechanism. The evidenc
Autor:
F. J. Dommerholt, Binne Zwanenburg, René de Gelder, Antonius J. H. Klunder, Gerardus J. Kemperman, Petronella Catharina Raemakers-Franken
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :633-638
The cephalosporin antibiotics cephradine, cephalexin, cefaclor and cefadroxil form complexes with β-naphthol and several other naphthalene derivatives. In these clathrate-type complexes, the cephalosporins form the host lattice for the naphthalene d
Autor:
Michael Maywald, Jens-Peter Steffen, Bernd Engels, Patrick W. Musch, Holger Helten, Michael Schmittel
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1331-1339
The regioselectivity of the thermal cyclisations of enyne–allenes 1 can be toggled as a function of the ring size of the cycloalkene. With a cyclopentene as the ene moiety the Myers–Saito (C2–C7) cycloaromatisation product is formed, whereas wi