Results 31 to 40 of about 9,300 (167)

Transacylierungen mit Acylderivaten des 4‐Pyridons [PDF]

Chemische Berichte, 1980
AbstractMit N‐Acyl‐4‐pyridonen (2a, b) sowie mit 4‐(Benzoyloxy)pyridin (3a) werden in Methylenchlorid oder Chloroform aliphatische und aromatische Amine sowie Thiole glatt zu den Amiden (4 – 6) und Thioestern (7, 8) acyliert. Primäre und sekundäre Alkohole reagieren langsamer, tert‐Butylalkohol nur noch mit 3a unter Basenkatalyse sowie mit den ...
Effenberger, Franz, Bessey, Eberhard
openaire   +1 more source

Photochemistry of Aromatic N‐Oxides in Water Probed by Time‐Resolved X‐ray Absorption Spectroscopy

Chemistry – A European Journal, EarlyView.
Time‐resolved XAS at the nitrogen and oxygen K‐edges is applied to the photorearrangement of two N‐oxides in water. Pyridine N‐oxide rapidly forms the oxaziridine isomer. Pyridazine N‐oxide undergoes ring opening to the diazo compound, without any evidence of intermediates.
Maximilian Paradiz Domínguez, Robby Büchner, Mattis Fondell, Albert M. Brouwer   +3 more
wiley   +1 more source

Solution Equilibrium Studies on Anticancer Ruthenium(II)–eta6-p-cymene Complexes of 3-Hydroxy-2(1H)-pyridones [PDF]

, 2013
Ru-II(eta(6)-p-cymene) complexes of bidentate (0,0) alkoxycarbonylmethyl-3-hydroxy-2(1H)-pyridone ligands exhibit in vitro antitumor activity. We determined the stoichiometry and stability in aqueous solution of two examples by pH-potentiometry, H-1 NMR ...
Bognár, Gabriella M., Enyedy, Éva Anna, Hanif, Muhammad, Hartinger, Christian G., Kiss, Tamás   +4 more
core   +1 more source

Conversion Between 2‐ and 3‐Dimensional Halogen‐Bonded Networks Formed From a Single N‐Oxide/Iodoalkyne Building Block

Chemistry – A European Journal, EarlyView.
Open halogen‐bonded networks have been prepared from building blocks that incorporate both iodoalkyne halogen bond donors and a pyridine‐N‐oxide halogen bond acceptor. An initially‐formed 3D network containing dioxane in its channels undergoes an unprecedented transition to a 2D material when crystals are exposed to diethyl ether.
Jordan N. Smith, Courtney Ennis, Huan V. Doan, Valeska P. Ting, Nicholas G. White   +4 more
wiley   +1 more source

Two Polymorphs of Bis(4-methoxyphenyl)tellurium(IV) Diiodide [PDF]

, 1998
The title compound, (C7H7O)2Tel2 (orC14H14I2O2Te), crystallizes in space group P1, either with Z = 8, (Ia), or Z = 4, (Ib). The six independent molecules [four in (Ia) and tow in (Ib)] have very similar structures.
Alvarez-Larena, Angel, Capparelli, Mario V., Farran José, Joan, Germain, Gabriel, Piniella, J. Francesc, Torres-Castellanos, Libardo   +5 more
core   +2 more sources

Total Syntheses of Agelamadin F and (±)‐Tauroacidin A, Enabled by NaClO2‐Mediated Coupling Reactions of Oroidin and Amines

Chemistry – A European Journal, EarlyView.
Total syntheses of agelamadin F and (±)‐tauroacidin A were achieved by sodium chlorite (NaClO2)‐mediated oxidative C─N coupling. Nine C15–N–amino acid‐substituted oroidin derivatives were successfully prepared to demonstrate the applicability and versatility of this oxidative coupling reaction.
Ryosuke Hirozumi, Yuta Kudo, Yuko Cho, Mari Yotsu‐Yamashita   +3 more
wiley   +1 more source

Comparative evaluation of noncanonical amino acids as site‐specific NMR probes for the complex of E. coli SSB with single‐stranded DNA without isotope labelling

The FEBS Journal, EarlyView.
Genetic encoding of noncanonical amino acids (ncAA) enables their site‐specific installation in proteins. This work compares the nuclear magnetic resonance (NMR) performance of different ncAAs in a large protein−DNA complex (~ 100 kDa) without isotope labelling. The ncAAs deliver readily detectable NMR signals in the complex between E.
Sreelakshmi Mekkattu Tharayil, Haocheng Qianzhu, Elwy H. Abdelkader, Adarshi P. Welegedara, Josemon George, Christoph Nitsche, Thomas Huber, Gottfried Otting   +7 more
wiley   +1 more source

Study of the Differential Activity of Thrombin Inhibitors Using Docking, QSAR, Molecular Dynamics, and MM-GBSA [PDF]

, 2015
Indexación: Web of Science; Scopus.Non-peptidic thrombin inhibitors (TIs; 177 compounds) with diverse groups at motifs P1 (such as oxyguanidine, amidinohydrazone, amidine, amidinopiperidine), P2 (such as cyano-fluorophenylacetamide, 2-(2-chloro-6 ...
Caballero, J., Mena-Ulecia, K., Tiznado, W.   +2 more
core   +3 more sources

Profiling of HCAR1 signalling reveals Gαi/o and Gαs activation without β‐arrestin recruitment and the discovery of an allosteric agonist

British Journal of Pharmacology, Volume 183, Issue 10, Page 2219-2235, May 2026.
Abstract Background and Purpose Lactate, historically viewed as a metabolic by‐product, has emerged as a signalling molecule via the G protein–coupled receptor Hydroxycarboxylic Acid Receptor 1 (HCAR1). The receptor is primarily expressed in adipocytes but also found in various other tissues.
Simon Lind, Shane C. Wright, Emilia Gvozdenovic, Kristina Nilsson, Kenneth L. Granberg, Michel Bouvier, Linda C. Johansson   +6 more
wiley   +1 more source

Deoxyfluorination of Phenols [PDF]

, 2011
An operationally simple ipso fluorination of phenols with a new deoxyfluorination reagent is presented.Chemistry and Chemical ...
Ritter, Tobias, Tang, Pingping, Wang, Weike   +2 more
core   +1 more source