Results 41 to 50 of about 47,675 (279)

Emerging experimental and computational methods for studying redox‐regulated structural transitions

FEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass, Dana Reichmann, Gábor Erdős   +2 more
wiley   +1 more source

Síntese de 1,3-diinos via acoplamento de acetilenos terminais catalisada por CuI sob irradiação de micro-ondas [PDF]

, 2015
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2015.No presente trabalho, desenvolveu-se uma nova metodologia sintética eficiente, simples e ...
Bettanin, Luana
core  

Rhodium(III)-Catalyzed Oxidative Coupling of 5-Aryl-1H-pyrazoles with Alkynes and Acrylates

, 2011
Rhodium(III)-Catalyzed Oxidative Coupling of 5-Aryl-1H-pyrazoles with Alkynes and Acrylates[RhCp*Cl(2)](2)-catalyzed oxidative coupling of 5-aryl-1H-pyrazoles with alkynes and acrylates has been achieved using Cu(OAc)(2) as an oxidant.
李兴伟, Zhao, Miao, Li, Xingwei
core   +1 more source

Development of copper-catalysed addition reactions to alkynes [PDF]

, 2020
In this thesis, new copper-catalysed addition reactions to alkynes have been developed. The new methodologies exploit hydro-functionalisation to transform readily available starting materials into N-heterocycles and enol esters via addition of amides ...

core   +1 more source

Ionomycin suppresses cancer cell growth by disrupting mitochondrial transcription

FEBS Open Bio, EarlyView.
In this study, we identify a new function for the selective Ca2+ ionophore, ionomycin, as an inhibitor of mitochondrial transcription. Both total and nascent RNA analyses revealed that ionomycin treatment reduces the transcription of mitochondrial genes.
Lishen Wang, Mingqiang Deng, Dongmei He, Diqin Lai, Dongjun Liu, Dengyong Zhu, Zhenhua Zhang, Peng Tang, Chuanman Zhou, Menghui Yin, Xichen Bao   +10 more
wiley   +1 more source

Hydroboration of Terminal Alkynes Catalyzed by a Mn(I) Alkyl PCP Pincer Complex following Two Diverging Pathways [PDF]

A stereo- and regioselective Mn(I)-catalyzed hydroboration of terminal alkynes with pinacolborane (HBPin) is described. The hydroboration reaction is highly Z-selective in the case of aryl alkynes and E-selective in the case of aliphatic alkynes.
Karl, Kirchner, Berthold, Stoeger, Daniel, Zobernig, Luis, Veiros   +3 more
core   +2 more sources

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Electrochemical cyclization of alkynes to construct five-membered nitrogen-heterocyclic rings

Beilstein Journal of Organic Chemistry
Organic five-membered rings have shown significant applications in the fields of organic synthesis, natural products, organic materials and pharmaceuticals for their unique characteristics. Electrochemical construction of five-membered rings from alkynes
Lifen Peng, Ting Wang, Zhiwen Yuan, Bin Li, Zilong Tang, Xirong Liu, Hui Li, Guofang Jiang, Chunling Zeng, Henry N. C. Wong, Xiao-Shui Peng   +10 more
doaj   +1 more source

The evolution of fundamental concepts in organic chemistry: Hydrocarbons in Iranian secondary school chemistry textbooks and their information content and importance based on shannon entropy [PDF]

پژوهش در آموزش شیمی
Background and Objective: This study examines the changes in the basic concepts of the chemistry of different branches of hydrocarbons (alkanes, alkenes, alkynes, and aromatics) in high school chemistry textbooks from 1971 to 2021.
Doost Mohammad Samiei Paghaleh, Elnaz Rashtizadeh   +1 more
doaj   +1 more source

Selective C-H Halogenation of Alkenes and Alkynes Using Flavin-Dependent Halogenases [PDF]

, 2023
Single component flavin-dependent halogenases (FDHs) possesses both flavin reductase and FDH activity in a single enzyme. We recently reported that the single component FDH AetF catalyzes site-selective bromination and iodination of a variety of aromatic
Cahmlo, Olive, Ahram, Kim, Yuhua, Jiang, Jared C., Lewis   +3 more
core   +2 more sources