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Приказ резултата 1-10 од 749
2-Alkylidene-4-oxothiazolidine S-oxides: synthesis and stereochemistry
(Pergamon-Elsevier Science Ltd, Oxford, 2013)
A series of 5-unsubstituted and 5-substituted 2-alkylidene-4-oxothiazolidine-S-oxides were synthesized by the sulfur-oxidation with m-CPBA. The stereochemistry of 5-substituted sulfoxides was determined by means of NMR ...
Design of coiled-coil protein-origami cages that self-assemble in vitro and in vivo
(Nature Publishing Group, New York, 2017)
Polypeptides and polynucleotides are natural programmable biopolymers that can self-assemble into complex tertiary structures. We describe a system analogous to designed DNA nanostructures in which protein coiled-coil (CC) ...
Insights into proteolytic processing of the major peanut allergen Ara h 2 by endogenous peanut proteases
(John Wiley & Sons Ltd, Chichester, 2010)
BACKGROUND: The major peanut allergens are Ara h 1, Ara h 2 and Ara h 6. Proteolytic processing has been shown to be required for the maturation process of Ara h 6. The aim of this study was to examine whether Ara h 2 ...
New potentiometric sensor for copper determination in waste waters based on a new type of modified GC electrode
(Analytical and Bioanalytical Chemistry, 2012)
The potentiometrical analysis of Cu2+ using Nafion- modified electrode with Cu complex with DPABA (Methyl 3,5-bis{bis-[(pyridin-2-yl)methyl]amino}methyl)benzoate) incorporated, is described. Parameters and conditions such ...
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)
Identification of protein binders in artworks by MALDI-TOF/TOF tandem mass spectrometry
(Elsevier Science Bv, Amsterdam, 2013)
Aim of this work is to propose an analytical protocol for proteinaceous binder identification in paintings using tryptic peptide analysis and MALDI-TOF mass spectrometry strengthened with MALDI-TOF/TOF tandem mass spectrometry ...
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 ...