Results 61 to 70 of about 30,052 (257)

An Unexpected Formation of Spiro Isoxazoline-Dihydrofurane Compounds from Substituted Ketofurfuryl Alcohols

open access: yesMolecules
Oximation of substituted ketofurfuryl alcohols in the presence of hydroxylamine hydrochloride and pyridine in ethanol as solvent led to a new class of spiro derivatives presenting a 7-methylene-1,6-dioxa-2-azaspiro [4.4] nona-2,8-diene skeleton along ...
Claire Cuyamendous   +2 more
doaj   +1 more source

Morphology-controlled oxime adsorbents exhibiting ionic-strength-enhanced selectivity for rare earth separation

open access: yesSustainability Science and Technology
Ensuring a stable and sustainable supply of critical metals requires diversifying resource streams and advancing recovery technologies. Adsorption and reclamation of metals from wastewater and brines offer promising routes that mitigate resource ...
Van T C Le, Hong Minh Tran, Ngoc T Bui
doaj   +1 more source

Hydroxylation of Aryl Sulfonium Salts for Phenol Synthesis under Mild Reaction Conditions

open access: yesMolecules
Hydroxylation of aryl sulfonium salts could be realized by utilizing acetohydroxamic acid and oxime as hydroxylative agents in the presence of cesium carbonate as a base, leading to a variety of structurally diverse hydroxylated arenes in 47–95% yields ...
Xuan-Bo Hu   +6 more
doaj   +1 more source

Erythromycin a oxime 11,12-carbonate and its oxime ethers.

open access: yesThe Journal of Antibiotics, 1989
Erythromycin A oxime 11,12-carbonate (5a) and its oxime ethers 5b approximately 5p have been prepared and their antibacterial activities compared with those of erythromycin A (1) and its 11,12-carbonate 2. The oxime 5a and many of its oxime ether derivatives showed good activity in vitro against Gram-positive and the more permeable Gram-negative ...
E G, Brain   +4 more
openaire   +3 more sources

Synthesis and Biological Activity of Novel O-Alkyl Derivatives of Naringenin and Their Oximes

open access: yesMolecules, 2017
O-Alkyl derivatives of naringenin (1a–10a) were prepared from naringenin using the corresponding alkyl iodides and anhydrous potassium carbonate. The resulting products were used to obtain oximes (1b–10b).
Joanna Kozłowska   +3 more
doaj   +1 more source

Charged pyridinium oximes with thiocarboxamide moiety are equally or less effective reactivators of organophosphate-inhibited cholinesterases compared to analogous carboxamides

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2022
The organophosphorus antidotes, so-called oximes, are able to restore the enzymatic function of acetylcholinesterase (AChE) or butyrylcholinesterase (BChE) via cleavage of organophosphate from the active site of the phosphylated enzyme. In this work, the
Zuzana Kohoutova   +7 more
doaj   +1 more source

2,6-Dichlorobenzaldehyde oxime [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2008
In the title compound, C(7)H(5)Cl(2)NO, there are two mol-ecules in the asymmetric unit. The mol-ecules are essentially identical. Each mol-ecule is connected to a symmetry-related mol-ecule through an inversion center by O-H⋯N hydrogen bonds, building an R(2) (2)(6) graph-set motif.
openaire   +3 more sources

Oxime-Bridged Mn6 Clusters Inserted in One-Dimensional Coordination Polymer

open access: yes, 2017
The reaction of MnCl2·4H2O with salicylaldoxime (H2salox) and the sodium salt of 1,3-bis­(carboxy­propyl)­tetramethyl­disiloxane (H2L) in a 1:1:1 molar ratio led to the self-assembly of {[Mn6O2(salox)6­(H2salox)­(H2O)3(μ-L)]­H2salox·1.2H2O}n, a 1D ...
Vladimir B. Arion (1985998)   +7 more
core   +1 more source

Oximation and Nitrosation of Adrenalone [PDF]

open access: yesAgricultural and Biological Chemistry, 1977
Aromatic reductones are a group of reagents which split cellular DNA. To survey their cellular specifity, some reductone derivatives were prepared. 3, 4-Dihydroxyphenylglyoxime (II) was obtained by reflux of adrenalone (I) with hydroxylamine in ethanol, in 25% yield.
YAMADA, Koji   +3 more
openaire   +2 more sources

Synthesis, in vitro screening and molecular docking of isoquinolinium-5-carbaldoximes as acetylcholinesterase and butyrylcholinesterase reactivators

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2020
The series of symmetrical and unsymmetrical isoquinolinium-5-carbaldoximes was designed and prepared for cholinesterase reactivation purposes. The novel compounds were evaluated for intrinsic acetylcholinesterase (AChE) or butyrylcholinesterase (BChE ...
David Malinak   +13 more
doaj   +1 more source

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