Results 151 to 160 of about 60,247 (222)

Supramolecular Polymerization and Morphological Transformation of Dynamic Helical Poly(Phenylacetylene)s via Chain‐End Host–Guest Interactions

Angewandte Chemie, Volume 138, Issue 40, 28 September 2026.
A helical polymer whose chain ends are connected through pillar[5]arene‐based host–guest interactions translates molecular helicity into supramolecular morphology. Solvent‐triggered helicity inversion accompanied by changes in chain rigidity switches the supramolecular architecture between cyclic and rigid‐rod nanostructures.
Tatsuya Nishimura, Haru Nozue, Feng Li, Tomoki Ogoshi, Katsuhiro Maeda   +4 more
wiley   +2 more sources

Stereoretentive Nucleophilic Aromatic Substitution Accesses Atropisomeric 4‐Amino‐N‐Arylquinolinium Salts

Chemistry – A European Journal, Volume 32, Issue 37, 1 October 2026.
Quinolin‐4‐ones were converted to chloroquinolinium salts, allowing formation of axially chiral aminoquinolinium salts via an enantioretentive SNAr reaction with a variety of amine nucleophiles. The salts have a high rotational barrier, with a racemization half‐life of ∼1000s of years.
Darren Holmes, Nia Foster, Saima Ansari, Paul Kavanagh, Paul Dingwall, Peter C. Knipe   +5 more
wiley   +1 more source

Ionic Liquid Electrolytes for Extreme Temperature Conditions: Challenges and Perspective

Angewandte Chemie, Volume 138, Issue 40, 28 September 2026.
Ionic liquids (ILs) have gained great attention as safe electrolyte components in recent years. This review elucidates the temperature effects on IL‐based electrolytes from molecular configurations, physicochemical properties, and interfacial chemistry, raises the challenges and design strategies operating at low‐ and HT, providing valuable guidance ...
En Xie, Chengdong Liu, Xinghao Wang, Jian Wang, Zhen Chen, Huihua Li, Wenlong Cai, Hao Li, Yang Peng, Fanglin Wu, Stefano Passerini, Haolin Tang   +11 more
wiley   +2 more sources

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

Chemistry – A European Journal, Volume 32, Issue 37, 1 October 2026.
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

Direct Mechano-Catalytic Synthesis of Amides Using Brass Balls via Cross-Coupling of Isocyanides With Arylboronic Acids or in Situ Generated N-Aryl-Pyridinium Salts. [PDF]

Chem Asian J
Mkrtchyan S, Purohit VB, Shalimov O, Prajapati RV, Prajapati VD, Iaroshenko VO.   +5 more
europepmc   +1 more source

Assembly and Properties of Donor/Acceptor–Functionalized 2,6‐Bisethynylpyridines; Investigations of Through‐Bond and Through‐Space Charge Transfer Behavior

Journal of Physical Organic Chemistry, Volume 39, Issue 10, October 2026.
Introduction of a cation to donor/acceptor‐functionalized 2,6‐bisethynylpyridines results in through‐space interaction of donor and acceptor units. The electronic effects of this organization are explored using 1H‐NMR and UV‐vis spectroscopies. ABSTRACT Introduction of Ag(I) cations to 2,6‐bisethynylpyridine units decorated with electron‐donating (N,N ...
Jarod T. Sjoquist, Noah A. Grinde, Maggie A. Schultz, Olivia J. Schwarz, John T. Nabors, Nathaniel P. Litts, Joseph D. Scanlon, Eric Bosch, Nathan P. Bowling   +8 more
wiley   +1 more source

Covalent Organic Framework Electrolytes for Solid‐State Lithium Batteries: Designing Ion Highways for Next‐Generation Energy Storage

Small, Volume 22, Issue 55, 1 October 2026.
Covalent organic frameworks provide a structurally programmable platform for solid‐state lithium batteries. This review outlines a design framework linking structural descriptors to ion‐transport metrics. It examines mechanisms of confinement, channel architecture, and hybrid designs, addressing the reasons for the occasional failure of high intrinsic ...
Rajesh Dhanushkotti, Ningaraju G. N., Karthik C. S., Karthik V, Anil Kumar M R, Jitendrasingh Rajpurohit, Jeremy I. G. Dawkins, Karim Zaghib   +7 more
wiley   +1 more source

The Redox Activity of Two Identical Units on Xylylene-Bridged <i>N</i>‑Pyridinium-Substituted Diamino-1,3,5-triazine. [PDF]

ACS Omega
Thangavel A, Hathaway JB, Hirbawi N, Ng A, Villanueva RJ, Madera O.   +5 more
europepmc   +1 more source

Designing Porous Boroaluminate Catalysts via Non‐Hydrolytic Ether Elimination

Journal of the American Ceramic Society, Volume 109, Issue 10, October 2026.
A non‐hydrolytic sol‐gel ether elimination route provides highly porous boroaluminate mixed oxides with homogeneous atomic distribution and acidic active sites. Careful precursor selection results in catalysts that are highly efficient in ethanol dehydration.
Michal Mlynek, Ales Styskalik, Iaroslav Doroshenko, Jan Varada, Jiri Pinkas, Johan G. Alauzun, Zdenek Moravec   +6 more
wiley   +1 more source

A Photoredox C-H Arene Functionalization toward Substituted Methyls. [PDF]

J Am Chem Soc
Žurauskas J, Radzevičius N, Vaicku̅nas P, Sergejevaitė G, Orentas E.   +4 more
europepmc   +1 more source