Results 51 to 60 of about 19,229 (196)

Nitrooxylation in Organic Synthesis: From Classical Nitrate Ester Formation to Modern Catalytic Strategies

Chemistry – A European Journal, EarlyView.
Nitrooxylation—the installation of nitrate esters (–ONO2) has evolved from classical mixed‐acid protocols to catalytic and mechano‐, flow‐, photo‐, and electrochemical strategies. This review delineates ionic and radical manifolds for C–ONO2 bond formation, emphasizing mechanistic control, selected substrate scope, and selectivity.
Jayanta Dey, Dmitry Katayev
wiley   +1 more source

Coordination Chemistry of Boron Subphthalocyanine With BINOL Derivatives: Unexpected Oxidation to Oxa[4]Helicene and Properties of the Resulting Axially Coordinated Complexes Containing Oxa[4]Helicene and/or BINOL Derivatives

Chemistry – A European Journal, EarlyView.
Treatment of BINOL with a boron subphthalocyanine derivative resulted in the formation of a complex coordinated to an oxa[4]helicene derivative, which is generated via a ring‐closure reaction of BINOL. In contrast, treatment of the monomethyl ether of 1,1′‐bi‐2‐naphthol (BINOL) afforded the expected axially coordinated complex.
Shafikul Islam, Kazuyuki Asahi, Hiroyuki Nishikawa, Daiki Tauchi, Masashi Hasegawa, Ken‐ichi Sugiura   +5 more
wiley   +1 more source

6-Bromo-2-naphthol–piperazine (2/1)

Acta Crystallographica Section E, 2008
In the title compound, 2C10H7BrO·C4H10N2, the piperazine (pip) molecule displays a chair conformation and is linked to two molecules of 6-bromo-2-naphthol (bno) via O—H...N hydrogen bonds.
Deliang Cui, Yan Tian
doaj   +1 more source

Synthesis and Structures of Novel Chiral Cyclic Hypervalent Iodine(III) Reagents for Metal‐Free Ligand‐Transfer Reactions

Chemistry – A European Journal, EarlyView.
Several new chiral cyclic hypervalent iodine(III) reagents have been synthesized and characterized. Carbon‐based ligands were successfully installed onto the hypervalent iodine centers, giving thus access to novel chiral cyano‐, trifluoromethyl‐ or alkynyl‐bearing λ3‐iodanes.
Emmanuel Valzer, Jean‐Marc Sotiropoulos, Karinne Miqueu, Laurent Pouységu, Stéphane Quideau   +4 more
wiley   +1 more source

Synergistic Regulation of Hierarchical Anode Interphase and Cathode Electronic Structure by a Fe(III) Complex for High‐Performance Aqueous Zinc‐Manganese Battery

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The NGB additive can concurrently address anode and cathode issues during Zn‐Mn battery cycling by constructing a hierarchical interfacial layer on the anode surface to alleviate side reactions and modulate zinc deposition and by incorporating Fe3+ ions into the α‐MnO2 cathode to improve its structural stability and electrical conductivity.
Xiaoliang Zhang, Lei Chen, Xiaojie Lu, Aishan He, Weifeng Shen, Chunxia Wang, Yong Liu, Xiangwu Zhang   +7 more
wiley   +1 more source

Natural Anthraquinone‐Like Compound Extracted from Green Husk of Walnut Improves Photocatalytic H2O2 Production Catalyzed by TiO2 Nanoparticles

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
In this work, a novel biomolecule/semiconductor hybrid catalyst was prepared by loading anthraquinone‐liked juglone onto anatase TiO2. This catalyst exhibited high photocatalytic activity for H2O2 production. Hydrogen peroxide (H2O2) is a vital oxidant with broad industrial applications, and its production via photocatalysis represents a highly ...
Zengyin He, Cui Li, Mingze Ni, Shu Lin, Kezhen Qi   +4 more
wiley   +1 more source

Anion‐Receptive Triazine‐Centered Azobenzene Trimers

European Journal of Organic Chemistry, EarlyView.
Triazine‐centered azobenzene trimers combine visible‐light switching and anion‐responsive charge‐transfer absorption in a single C3‐symmetric platform, establishing triazine scaffolds as versatile, multistimuli photoswitches for adaptive molecular and supramolecular materials.
Awatef Ayadi, Atiur Rahaman, Quentin Deborde, Valentin Magné, Orein F. Jafter, Dominik Lungerich   +5 more
wiley   +1 more source

Adsorption and Diffusion Characteristics of 2-Naphthol from Aqueous Media by Chitosan-ENR Biocomposites

ASEAN Journal on Science and Technology for Development, 2018
Chitosan entrapped ENR-50 (CTS-t-ENR) biocomposites developed were studiedfor the absorption and desorption of 2-naphthol in aqueous media. Biocomposites comprising chitosan (CTS) immobilized or trapped in a partially crosslinked ENR (designated as CTS-t-
R. GUNASUNDERI, M. R. H. MAS HARIS
doaj   +1 more source

From Molecules to Materials: The Role of Halogen Bonds in Electron Donor–Acceptor Complex Mediated Organic Synthesis

European Journal of Organic Chemistry, EarlyView.
This Concept highlights recent advances in organic synthesis based on electron donor–acceptor (EDA) complex photochemistry, with emphasis on halogen bonding. Halides play a dual role as key components of this noncovalent interaction, and as reactivity‐enabling leaving groups.
Marco Manni, Giacomo Filippini
wiley   +1 more source

1-[(E)-1-(2-Carboxy-6-methylphenyl)diazen-1-ium-2-yl]naphthalen-2-olate

IUCrData
The title compound, C18H14N2O3, crystallizes with two zwitterionic molecules (A and B) in the asymmetric unit, each featuring an intramolecular N—H...O hydrogen bond.
Nabila Benabila, Ouarda Brihi, Souheyla Chetioui, Jean-Pierre Djukic   +3 more
doaj   +1 more source