Results 141 to 150 of about 434 (180)

Synthesis of N‐Substituted 4‐Pyridones From Skipped Diynones via Intramolecular Base or Ag(I)‐Catalyzed Hydroamination

Asian Journal of Organic Chemistry, EarlyView.
A general protocol for the synthesis of N‐substituted 4‐pyridones from skipped diynones is presented via a base or Ag(I)‐catalyzed hydroamination pathway. Abstract Cs2CO3 or CF3COOAg catalyze the intramolecular 6‐endo hydroamination of the Z‐enaminones derived from the Michael‐type addition of primary amines to skipped diynones, yielding N‐substituted ...
Elisavet‐Maria Zantioti‐Chatzouda, Stavroula‐Aikaterini Kaplani, Eleni‐Maria Stroda, Nikolaos Eleftheriadis, Manolis Stratakis   +4 more
wiley   +1 more source

Pyrolyzed Walnut Shell‐Based Flexible Electrodes for Magnetically Triggered ON/OFF DNA Release

Advanced NanoBiomed Research, EarlyView.
A magnetically actuated DNA release system using walnut shell‐derived electrodes enables ON/OFF switching of electron transfer by controlling DNA hybridization with magnetic beads. A magnetically gated, enzymatically driven DNA release platform based on sustainable pyrolyzed walnut shell‐derived carbon electrodes is reported.
Paolo Bollella, Blanca Cassano, Verdiana Marchianò, Angelo Tricase, Eleonora Macchia, Luisa Torsi   +5 more
wiley   +1 more source

Metastable Macrocyclic Bis‐Meisenheimer Adduct

Angewandte Chemie, EarlyView.
A tetranitroazacalixarene captures cyanide reversibly via SNAr to form a metastable dianionic bis‐Meisenheimer complex. Stabilized by intramolecular hydrogen bonding, the dianionic adduct spontaneously regenerates the parent macrocycle under mild conditions. This dynamic, fuel‐driven process can be finely tuned by the counterion, concentration, solvent,
Simon Pascal, Angélina Torres Ruiz, Aerin E. Baker, Douglas A. Vander Griend, Michel Giorgi, Aurélien Planchat, Denis Jacquemin, Olivier Siri   +7 more
wiley   +1 more source

Mechanistische Charakterisierung einer Diterpensynthase für Chryseojoostene A–E aus Chryseobacterium joostei

Angewandte Chemie, EarlyView.
Die bakterielle Diterpensynthase CjCS für Chryseojoosten wurde mechanistisch durch Markierungsexperimente, Dichtefunktionaltheorie‐Rechnungen und die Umwandlung von Substratanaloga mit blockierter Reaktivität charakterisiert. Ortsgerichtete Mutagenese ermöglichte den Zugang zu Nebenprodukten, darunter Chryseojoosten E, dessen Biosynthese eine ...
Georges B. Tabekoueng, Heng Li, Kexin Yang, Lukas Lauterbach, Bernd Goldfuss, Jeroen S. Dickschat   +5 more
wiley   +1 more source

Mechanistic Insight into Para‐Substituent Control of Thermal Half‐Lives in Arylazopyrazole Photoswitches

Angewandte Chemie, EarlyView.
Herein we provide an overview of photochromic and photophysical properties of a broad variety of arylazo‐1,3,5‐trimethylpyrazole photoswitches, including the influence of 23 different para‐substituents. Measured half‐lives correlated in a Hammet plot are rationalized by density functional theory calculations, revealing the underlying thermal ...
Katharina Schlögl, Nadja K. Singer, Dominik Dreier, Hubert Kalaus, Rafaela C. O. Conceição, Marko D. Mihovilovic, Leticia González   +6 more
wiley   +1 more source

Risk of Relapse Post Reduced Intensity Conditioning Allogeneic Stem Cell Transplant in Patients With High‐Risk Myeloid Neoplasms Based on GvHD Prophylaxis: PTCy Vs. TAC/MTX

American Journal of Hematology, EarlyView.
Khalil Hassan, Anmol Baranwal, Al Rabee Kassis, Jade Braun, Gabriel Bartoo, Robert Wolf, Mehrdad Hefazi, Aasiya Matin, Abhishek Mangoankar, Mithun V. Shah, Mark R. Litzow, William J. Hogan, David Dingli, Hassan B. Alkhateeb   +13 more
wiley   +1 more source

Oxygen‐Tolerant, Red Light‐Driven Controlled Synthesis of Easily Degradable and High Molecular Weight α‐Lipoic Acid‐Vinyl Copolymers

Angewandte Chemie, EarlyView.
Red‐light‐driven, oxygen‐tolerant reversible addition–fragmentation chain transfer (RAFT) polymerization using methylene (MB+) and triethanolamine (TEOA) enables the synthesis of degradable α‐lipoic acid–vinyl copolymers with high molar mass (600 000 g mol−1), low dispersity, and high LA incorporation.
Ivan O. Levkovsky, Lucca Trachsel, Hironobu Murata, Krzysztof Matyjaszewski   +3 more
wiley   +1 more source

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Dreaming for the World: A Jungian Study of Dreams During the COVID‐19 Pandemic 1

Journal of Analytical Psychology, 2023
This project explores what dreams might reveal about the collective psyche’s response to the COVID‐19 pandemic in its first year, before the development of vaccines.
Ronnie S. Landau, R. Brooke, A. Lampe, Brianna Stich, Nadezhda Semikolwnnykh, N. Serebrennikova   +5 more
semanticscholar   +1 more source

Digital Technologies for Scientific Analysis of Current Data on the Epidemic of New Coronavirus Infection COVID-2019

Legal Concept, 2020
DIGITAL TECHNOLOGIES FOR SCIENTIFIC ANALYSIS OF CURRENT DATA ON THE EPIDEMIC OF NEW CORONAVIRUS INFECTION COVID-2019Alternate : Сегодня человечество столкнулось с новым большим вызовом, Ð¼Ð°ÑÑˆÑ‚Ð°Ð±Ð½Ñ ...
A. Inshakova
semanticscholar   +1 more source

Predictors of death within 6 months after non-ST elevation myocardial infarction in post-COVID-19 patients

Profilakticheskaya meditsina, 2022
Objective. To investigate predictors of death within six months of non-ST elevation myocardial infarction (NSTEMI) in postCOVID-19 patients. Material and methods.
M. Chashchin, A. Gorshkov, O. Drapkina
semanticscholar   +1 more source