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An easily accessed class of recyclable hypervalent iodide reagents for functional group oxidations: bis(trifluoroacetate) adducts of fluorous alkyl iodides, CF3(CF2)(n-1)I(OCOCF3)(2)
(Royal Soc Chemistry, Cambridge, 2005)
Reactions of commercial fluorous alkyl iodides RfnI (1-R-fn; R-fn = CF3(CF2)(n-1); n = 7, 8, 10, 12) with 80% H2O2 and trifluoroacetic anhydride give RfnI(OCOCF3)(2) (2-R-fn; 89-97%). These rapidly oxidize 1,4-hydroquinones ...
Gibberellic acid nitrite stimulates germination of two species of light-requiring seeds via the nitric oxide pathway
(New York Acad Sciences, New York, 2005)
We used two species of light-requiring seeds, Paulownia tomentosa, which have absolute light requirement (no germination in darkness), and Stellaria media seeds, which germinate in darkness to a certain extent because of ...
Alkylation of carbonyl compounds in the TiCl4-promoted reaction of trimethylsilyl enol ethers with ethylene oxide
(Pergamon-Elsevier Science Ltd, Oxford, 2000)
Titanium tetrachloride promoted reaction of trimethylsilyl enol ethers with ethylene oxide affords homoaldol type products in moderate/good yields. The reaction is believed to proceed via the titanium enolates. (C) 2000 ...
Transition metal complexes with bis(hydrazone) ligands of 2,6-diacetylpyridine. Hepta-coordination of 3d metals
(Elsevier Academic Press Inc, San Diego, 2004)
Liquid-crystalline fullerene-ferrocene dyads
(Royal Soc Chemistry, Cambridge, 2004)
The 1,3-dipolar cycloaddition reaction was used to assemble fullerene, ferrocene and a second-generation liquid-crystalline cyanobiphenyl-based dendrimer. The targeted compound displayed an enantiotropic smectic A phase ...
Liquid-crystalline bisadducts of [60]fullerene
(Amer Chemical Soc, Washington, 2006)
A second-generation cyanobiphenyl-based dendrimer was used as a liquid-crystalline promoter to synthesize mesomorphic bisadducts of [60]fullerene. Liquid-crystalline trans-2, trans-3, and equatorial bisadducts were obtained ...
Physical-chemical characteristics and oxidative stability of oil obtained from lyophilized raspberry seed
(Wiley-V C H Verlag Gmbh, Weinheim, 2009)
Fresh raspberry (Rubus idaeus), cultivar Willamette, was freeze-dried (lyophilization). A byproduct of lyophilization is "fine dust" of raspberry consisting of finely ground raspberry fruit body and seed. The seeds were ...
Pentachlorobenzene sorption onto sediment organic matter
(Pergamon-Elsevier Science Ltd, Oxford, 2007)
Sorption behaviour of pentachlorobenzene on four humic acids (HAs) and two humins extracted from a take sediment was studied. The objective was to provide a better understanding of the sorption mechanism of pentachlorobenzene ...
Interpretative optimization and artificial neural network modeling of the gas chromatographic separation of polycyclic aromatic hydrocarbons
(Elsevier Science Bv, Amsterdam, 2008)
An interpretative strategy (factorial design experimentation + total resolution analysis + chromatogram simulation) was employed to optimize the separation of 16 polycyclic aromatic hydrocarbons (PAHs) (naphthalene, ...
Computational studies on imidazole heme conformations
(Springer, New York, 2005)
Density functional theory computations of heme with ionized propionic acid groups, axially coordinated with two imidazoles, were performed for different mutual orientations of the imidazole planes. Environmental influences ...