Results 221 to 230 of about 12,942 (258)

Reaction of Boron Trichloride with Ribonucleic Acids

Nature, 1962
THE effect of acids on ribonucleic acids (RNA) is markedly different from their effect on deoxyribonucleic acids (DNA). In the latter there is first a liberation of the purines to give apurinic acid1, and then a slower elimination reaction to give pyrimidine-containing oligonucleotides2. Advantage has been taken of this sequence of reactions to develop
M E, BRAMWELL, A S, JONES
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Sugar complexation to silicone boronic acids

Chemical Communications, 2013
A new class of surface-active compounds based on the combination of silicones and boronic acids is described. The properties of the compounds can be tuned by manipulation of both the hydrophobic (silicone size and 3D structure) and hydrophilic components (by binding different saccharides to the boronic acid).
Michael A, Brook, Laura, Dodge, Yang, Chen, Ferdinand, Gonzaga, Hazem, Amarne   +4 more
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Effect of boronic acids on antifreeze proteins

Journal of Protein Chemistry, 1991
The activity of antifreeze glycoprotein from the blood serum of Boreagadus saida was strongly inhibited by ions of organic boronic acids as well as by borate. The activity of nonglycoprotein from the blood serum of Pseudopleuronectus americanus, however, was not similarly inhibited.
R E, Feeney, D T, Osuga, Y, Yeh
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Boronic Acids in Molecular Self‐Assembly

Chemistry – An Asian Journal, 2008
AbstractThe reversibility of boronic acid and diol interaction makes it an ideal candidate for the design of self‐assembled molecular structures. Reversibility is required to ensure that the thermodynamically most stable structure is formed. Reversibility also ensures that any errors produced during the assembly process are not permanent.
Norifumi, Fujita, Seiji, Shinkai, Tony D, James   +2 more
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Boronic acid mono- and diesters of the aldopentoses

Carbohydrate Research, 2010
The four aldopentoses ribose, arabinose, xylose, and lyxose were evaluated to test their suitability as linear linkers for the formation of intrinsically chiral covalent organic boronic ester networks. Based on X-ray crystal structures of the reaction products with phenylboronic acid, arabinose and xylose formed boronic acid diesters. Lyxose and ribose
Moritz M, Reichvilser, Christoph, Heinzl, Peter, Klüfers   +2 more
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Comparison Study of Alkyl Boronic Acids with Boric Acid

Journal of Pharmaceutical Sciences, 1962
The bacteriostatic activities of two alkyl boronic acids were compared with boric acid. Some primary irritation and chronic toxicity determinations of the compounds were also accomplished. The results indicated that nonyl boronic acid and dodecyl boronic acid possessed bacteriostatic activity superior to boric acid, and that very dilute concentrations ...
S M, SLEIGHT, M C, VINCENT
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Which Is Reactive in Alkaline Solution, Boronate Ion or Boronic Acid? Kinetic Evidence for Reactive Trigonal Boronic Acid in an Alkaline Solution

Inorganic Chemistry, 2006
That boronic acid is a reactive species toward a diol moiety even in an alkaline solution and that the boronate ion is not very reactive were demonstrated by the estimated upper limit of the rate constants for the reactions of some boronic acids with 2,2'-biphenol and 2,3-dihydroxynaphthalene in a neutral-alkaline solution, which will correct a common ...
Satoshi, Iwatsuki, Shihoko, Nakajima, Masahiko, Inamo, Hideo D, Takagi, Koji, Ishihara   +4 more
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Peptide Boronic Acid Inhibitors of Thrombin

1993
Fibrin polymerization is the major component in venous thrombosis while both fibrin deposition and platelet aggregation are important in arterial thrombosis. Thrombin, the last protease in the blood coagulation cascade, hydrolyzes two bonds of fibrinogen to convert it into insoluble fibrin. Thrombin also catalyzes platelet aggregation.
C, Kettner, R M, Knabb
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Boronic Acids as Ligands for Affinity Chromatography

Chinese Journal of Chromatography, 2006
A review on the principles and applications of boronic acids as affinity ligands for the chromatographic separation of carbohydrates, nucleic acid components, glycoproteins, and other small biomolecules. The mechanisms of interactions between boronate ligands and analytes are described. Various boronate ligands and supports are discussed.
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Binding of boronic acids to chymotrypsin

Biochemistry, 1974
J D, Rawn, G E, Lienhard
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