Results 61 to 70 of about 205,218 (235)

Synthesis of nitroxyl radical by direct nucleophilic functionalization of a C-H bond in the azadiene systems [PDF]

, 2012
Cyclic dinitrones underwent nucleophilic substitution of the hydrogen atom in the reaction with a paramagnetic carbanion, the lithium derivative of 4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-1-oxyl 3-oxide, to give polyfunctional nitronyl nitroxyls ...
Bogomyakov, A. S., Chupakhin, O. N., Ovcharenko, V. I., Romanenko, G. V., Sagdeev, R. Z., Stass, D. V., Tretyakov, E. V., Utepova, I. A., Varaksin, M. V.   +8 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Cobalt(III)-catalyzed asymmetric ring-opening of 7-oxabenzonorbornadienes via indole C–H functionalization

Nature Communications, 2023
Asymmetric ring-opening (ARO) reactions, which can help quickly build molecular complexity, have not been extensively shown via β-oxygen elimination. Here, the authors report a cobalt(III)-catalyzed ARO reaction, providing mechanistic insights and the ...
Yang Zheng, Wen-Yun Zhang, Qing Gu, Chao Zheng, Shu-Li You   +4 more
doaj   +1 more source

Cobalt-catalysed site-selective intra- and intermolecular dehydrogenative amination of unactivated sp3 carbons [PDF]

, 2015
Cobalt-catalysed sp2 C–H bond functionalization has attracted considerable attention in recent years because of the low cost of cobalt complexes and interesting modes of action in the process. In comparison, much less efforts have been devoted to the sp3
Ge, Haibo, Li, Guigen, Sun, Hao, Wu, Xuesong, Yang, Ke, Zhao, Yan   +5 more
core   +1 more source

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

FEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino, Meijie Li, Cécile Fizames, Mattia Adamo, Laurence Lejay, Christian Dubos, Matthieu Platre, Antoine Martin   +7 more
wiley   +1 more source

Recent Advances in the Nickel-Catalyzed Alkylation of C-H Bonds

Molecules
Functionalization of C-H bonds has emerged as a powerful strategy for converting inert, nonfunctional C-H bonds into their reactive counterparts.
Franc Požgan, Uroš Grošelj, Jurij Svete, Bogdan Štefane, Hamad H. Al Mamari   +4 more
doaj   +1 more source

Remote C−H functionalization using radical translocating arylating groups

Nature Communications, 2018
Selective remote functionalization of aliphatic C(sp3)−H bonds is highly challenging and often requires transition metals and/or directing groups. Here, the authors show the γ-arylation of aliphatic alcohols via a two-step radical translocation and ...
Florian W. Friese, Christian Mück-Lichtenfeld, Armido Studer   +2 more
doaj   +1 more source

Intramolecular Arene C−H to C−P Functionalization Mediated by Nickel(II) and Palladium(II) [PDF]

, 2013
A tris(phosphine) ligand with a triarylbenzene backbone was employed to support mono-nickel(II) and -palladium(II) complexes. Two phosphine arms coordinated to the metal center, while the third phosphine was found to form a C–P bond with dearomatization ...
Agapie, Theodor, Suseno, Sandy
core   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Recent advances towards electrophotocatalytic C(sp2 )-H functionalization

SynOpen
The direct functionalization of inert C(sp²)-H bonds represents a central and challenging objective in synthetic chemistry. Photoelectrocatalysis has recently ushered in a transformative paradigm for efficient C(sp²)-H bond functionalization.
Peng Qian, Jiusi Yang
doaj   +1 more source