Results 121 to 130 of about 10,063 (262)

Preparation of Some Pentose Oximes

, 1975
Oximes of arabinose, ribose and xylose have been prepared from each pentose and hydroxylamine in anhydrous ethanol. Free hydroxylamine prepared from its hydrochloride by neutralization with sodium ethoxide was added dropwise into a pentose solution ...
飯尾, 雅嘉, 大村, 浩久, Omura, Hirahisa, Shimotokube, Toshiro, Iio, Masayoshi   +4 more
core  

Advancements in Mass Spectrometry‐Based Glycomics in Food and Nutritional Science

Mass Spectrometry Reviews, Volume 45, Issue 4, Page 829-850, July/August 2026.
ABSTRACT This review highlights advancements in mass spectrometry (MS)‐based glycomics in food and nutritional science. Carbohydrates, which are vital for human health, exhibit complex structures, making their analysis challenging. MS has become an indispensable tool for elucidating the structures of carbohydrates, including glycans, through soft ...
JaeHui Song, HyunJi Lee, Youngshik Choe, Hyeyoung Lee   +3 more
wiley   +1 more source

SÍNTESE, CARACTERIZAÇÃO E AVALIAÇÃO DA ATIVIDADE CITOTÓXICA DE COMPOSTOS CICLOPALADADOS CONTENDO COMO LIGANTES BENZALDEIDOXIMA ORTOMETALADA E ETILENOTIOURÉIA

Química Nova
The halide-bridge cleavage reaction of the [Pd(C2 ,N-bzox)(µ-Cl)]2 compound (bzox = benzaldehydeoxime) with ethylenethiourea (L) in the 1:2 molar ratio at room temperature yielded the cyclopalladated compound [Pd(C2 ,N-bzox)(Cl)(L)] (1) whose replacement
Nathália A. Thomazella, Sahra C. Lemos, Ronan F. F. de Souza, Rodrigo A. de Souza, Antonio E. Mauro, Iracilda Z. Carlos, Adelino V. G. Netto   +6 more
doaj   +1 more source

Strategies Toward Accessing Enantioenriched (Hetero)Benzo‐Fused 5‐ and 6‐ Membered Rings via Intermolecular Carbometalation

Angewandte Chemie, Volume 138, Issue 23, 1 June 2026.
The use of transition‐metal catalysts and design of chiral ligands have allowed chemists to access highly functionalized benzofused 5‐ and 6‐ membered rings in high yield and enantioselectivity. A common strategy used relies on an intermolecular carbometalation across alkynes and olefins, usually followed by a subsequent intramolecular carbometalation.
Clara Jans, Armaan Grewal, Xavier Abel‐Snape, Mark Lautens   +3 more
wiley   +2 more sources

Aziridinierung eines einzelnen Kohlenstoffatoms in Alkenen mittels Energietransferkatalyse

Angewandte Chemie, Volume 138, Issue 26, 22 June 2026.
Im Gegensatz zur traditionellen Alken‐Aziridinierung über (formalen) Nitren‐Transfer berichten wir hier über eine Strategie zur intermolekularen Aziridinierung eines einzelnen Alken‐Kohlenstoffatoms bei zusätzlicher Funktionalisierung der anderen Position. Durch Energietransfer‐ (EnT‐)Katalyse werden Alkenylboronate und ‐silane in reaktive Intermediate
Fritz Paulus, Corinna Heusel, Felix H. Wessels, Bünyamin Sikora, Maik G. Niedziella, Kilian van der Beck, Constantin G. Daniliuc, Frank Glorius   +7 more
wiley   +1 more source

Gold-catalyzed rearrangement of O-vinyl oximes for the synthesis of highly substituted pyrroles.

, 2011
O-Vinyl oximes were synthesized from the reaction of oximes with activated alkynes and subsequently rearranged using gold catalysis to afford highly substituted pyrroles in an efficient and regiocontrolled process.
Jason E. Camp, Camp, Jason, Ngwerume, Simbarashe, Simbarashe Ngwerume   +3 more
core   +1 more source

Aziridination of a Single Carbon Atom in Alkenes via Energy Transfer Catalysis

Angewandte Chemie International Edition, Volume 65, Issue 26, 22 June 2026.
Contrary to traditional alkene aziridination via (formal) nitrene transfer, we herein report a strategy that achieves intermolecular aziridination of a single alkene carbon atom and installs an additional group at the other. Enabled by metal‐free energy transfer (EnT) catalysis, alkenyl boronates and silanes are transformed into reactive intermediates ...
Fritz Paulus, Corinna Heusel, Felix H. Wessels, Bünyamin Sikora, Maik G. Niedziella, Kilian van der Beck, Constantin G. Daniliuc, Frank Glorius   +7 more
wiley   +1 more source

In vitro evaluation of neutral oximes as reactivators of parathion-inhibited electric eel acetylcholinesterase

, 2017
Organophosphorus (OP) compounds are irreversible inhibitors of acetylcholinesterase (AChE) commonly used as pesticides and, unfortunately, as nerve agents in terrorist attacks.
Rezende, Claudia M., Cavalcanti, Laura P.A.N., Claudia M. Rezende, Joselia A. Lima, Keila S.C. Lima, Lima, Joselia A., Lima, Keila S.C., Antonio L.S. Lima, Aguiar, Alcino P., Alcino P. Aguiar, Lima, Antonio L.S., Laura P.A.N. Cavalcanti   +11 more
core   +1 more source

1,1‐and 1,2‐Diborylalkenes: Preparation and Synthetic Applications

Advanced Synthesis &Catalysis, Volume 368, Issue 12, 17 June 2026.
In this review, we highlight recent advances in the synthesis and reactivity of 1,1‐diborylalkenes and 1,2‐diborylalkenes, along with various transformations leading to C‐C, C‐heteroatom, and multicomponent products. By providing a comprehensive and practical resource, this review aims to assist researchers in exploring the synthetic utility of 1,1 and
Jayaram Vankudoth, Maruti Mali, Fabienne Berrée   +2 more
wiley   +1 more source

On the inhibitory properties of oximes I. action of oximes on the chemiluminescence of luminol

, 1960
Utvrđeno je da razni oksimi djelomično veoma izrazito inhibiraju luminolsku reakciju (gase kemiluminescenciju luminola), koja je katalizirana utjecajem organofosfornih spojeva, odnosno kompleksnih spojeva željeza.
Jelka Matković, Matković, Jelka, D. Fleš, Weber, K., Paulić, N., N. Paulić, Fleš, D., K. Weber   +7 more
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