Results 171 to 180 of about 21,287 (222)
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Journal of Polymer Science: Polymer Chemistry Edition, 1975
AbstractA polymer bearing hydroxamic acid groups and having a high affinity for iron(III) was prepared through the following procedure. Acryloylalanine (III), prepared by the reaction of acryloyl chloride with alanine, was treated with N‐hydroxysuccinimide in the presence of dicyclohexylcarbodiimide to give the N‐hydroxysuccinimide ester (IV).
Anthony Winston, Edward T. Mazza
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AbstractA polymer bearing hydroxamic acid groups and having a high affinity for iron(III) was prepared through the following procedure. Acryloylalanine (III), prepared by the reaction of acryloyl chloride with alanine, was treated with N‐hydroxysuccinimide in the presence of dicyclohexylcarbodiimide to give the N‐hydroxysuccinimide ester (IV).
Anthony Winston, Edward T. Mazza
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Urease inhibition by hydroxamic acids
Experientia, 1981Ureases from jack beans andRhodototorula pilimanae were observed to be inhibited by primary hydroxamic acids but were not inhibited by acyclic-secondary (N-alkyl) hydroxamic acids.
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The oxidation of hydroxamic acids
Journal of the Chemical Society C: Organic, 1966The oxidation of alkyl or benzyl N-hydroxycarbamate produced mainly the corresponding O-alkoxycarbonyl or O-benzoxycarbonyl N-hydroxycarbamates and small amounts of the corresponding trisubstituted hydroxylamines. The oxidation of sodium benzhydroxamate with iodine gave O-benzoyl benzhydroxamate; hydroxyurea and N-hydroxy-N′-phenylurea were similarly ...
E. Boyland, R. Nery
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Hydroxamic acids. I. The oxidation of hydroxamic acids and their O-alkyl derivatives
Australian Journal of Chemistry, 1968The generality of the formation of an N,O-diacylhydroxylamine from the oxidation of hydroxamic acids in an inert solvent is confirmed for an extended range of oxidizing agents. Oxidation of o-alkylhydroxamic acids with a variety of oxidizing agents yields an ester and small amounts of the corresponding carboxylic acid.
JE Rowe, AD Ward
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Photochemistry of hydroxamic acids
Tetrahedron, 1987Abstract Photochemical reactions of hydroxamic acids have been studied. The intermediacy of a RCONH radical is postulated, based on oxidations achieved with DCA under photochemical conditions.
B.D. Hosangadi +3 more
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Derivatives of hydroxamic acids
Applied Organometallic Chemistry, 2000Despite the biological importance and rich chemistry of hydroxamic acids (HAs), their organometallic derivatives have received little attention so far. Fully silylated (trimethylsilyl and t-butyldimethylsilyl) derivatives which are promising for medicinal applications have a structure derived from that of the tautomeric hydroximic acid with an E/Z ...
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1969
Publisher Summary This chapter summarizes the methods available for the synthesis of cyclic hydroxamic acids––to outline their characteristic reactions, and to present some useful physical data. Their synthesis, some biological and physical properties are also reviewed.
J.B. Bapat, D.S.T.C. Black, R.F.C. Brown
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Publisher Summary This chapter summarizes the methods available for the synthesis of cyclic hydroxamic acids––to outline their characteristic reactions, and to present some useful physical data. Their synthesis, some biological and physical properties are also reviewed.
J.B. Bapat, D.S.T.C. Black, R.F.C. Brown
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Science, 1967
The hydroxamic acid bond occurs in products from fungi, yeast, bacteria, and plants. The —CON(OH)— bond arises by oxidation of a free or bound amino group in a unit structure which is often closely related to conventional amino acids. Products are known with one, two, or three hydroxamic acid groups per molecule.
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The hydroxamic acid bond occurs in products from fungi, yeast, bacteria, and plants. The —CON(OH)— bond arises by oxidation of a free or bound amino group in a unit structure which is often closely related to conventional amino acids. Products are known with one, two, or three hydroxamic acid groups per molecule.
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The Chemistry of Hydroxamic Acids
2013This chapter presents the chemical structure of hydroxamic acids, the routes of their synthesis, and their chemical properties. A discussion is presented as to how their metal chelating and hydrogen bonding properties make them a class of compounds that may have multiple biological activities.
Satya P. Gupta, Anjana Sharma
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Novartis Foundation symposium, 1999
An important component of general defence mechanisms of plants are toxic secondary metabolites that function as natural pesticides. The cyclic hydroxamic acids DIBOA (2,4-dihydroxy-1,4-benzoxazin-3-one) and DIMBOA (2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one) play an important role in the chemical defence of cereals against pests such as insects and ...
A, Gierl, M, Frey
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An important component of general defence mechanisms of plants are toxic secondary metabolites that function as natural pesticides. The cyclic hydroxamic acids DIBOA (2,4-dihydroxy-1,4-benzoxazin-3-one) and DIMBOA (2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one) play an important role in the chemical defence of cereals against pests such as insects and ...
A, Gierl, M, Frey
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