Results 201 to 210 of about 147,809 (300)

(Poly)Borylated Species as Modern Reactive Groups toward Unusual Synthetic Applications

Angewandte Chemie, EarlyView.
In this review, we spotlight recent breakthroughs in α‐polyboron‐substituted carbon‐centered intermediates (carbanion, carbocation, radical, and carbene) and polyborylated alkenes. By bridging fundamental reactivity with the application potential of these extraordinary species, we hope this review will serve as a roadmap for harnessing these unique ...
Nadim Eghbarieh, Nicole Hanania, Pinaki Nad, Tipu Alam, Tamir Kish, Ahmad Masarwa   +5 more
wiley   +2 more sources

Intramolecular Hydrogen Bond Activation: Thiourea-Organocatalyzed Enantioselective 1,3-Dipolar Cycloaddition of Salicylaldehyde-Derived Azomethine Ylides with Nitroalkenes. [PDF]

ACS Catal, 2018
Esteban F, Cieślik W, Arpa EM, Guerrero-Corella A, Díaz-Tendero S, Perles J, Fernández-Salas JA, Fraile A, Alemán J.   +8 more
europepmc   +1 more source

Feature Selection for Machine Learning‐Driven Accelerated Discovery and Optimization in Emerging Photovoltaics: A Review

Advanced Intelligent Discovery, EarlyView.
Feature selection combined with machine learning and high‐throughput experimentation enables efficient handling of high‐dimensional datasets in emerging photovoltaics. This approach accelerates material discovery, improves process optimization, and strengthens stability prediction, while overcoming challenges in data quality and model scalability to ...
Jiyun Zhang, Jiayi Tan, Qizhen Song, Tian Du, Jens Hauch, Christoph J. Brabec   +5 more
wiley   +1 more source

Proton Tautomerism for Anhydrous Superprotonic Conduction in 1,2,3‐Triazolium Dihydrogen Phosphate Crystal

Angewandte Chemie, EarlyView.
This study investigates the contribution of proton tautomerism to solid‐state proton conduction and achieves isotropic superprotonic conduction in acid–base single crystals. Specifically, low‐barrier isotropic superprotonic conductivity exceeding 10−3 S cm−1 is achieved in a cocrystal of 1,2,3‐triazole and phosphoric acid.
Kaito Nishioka, Shun Dekura, Tomoko Fujino, Motohiro Mizuno, Reiji Kumai, Bo Thomsen, Motoyuki Shiga, Yuta Hori, Yasuteru Shigeta, Hatsumi Mori   +9 more
wiley   +2 more sources

The Effect of Silk on the Stabilization of Labile Enzyme Lipoxygenase

Advanced NanoBiomed Research, EarlyView.
Entrapping lipoxygenase within silk significantly extended its stability from under 24 h to 10 days. Variations in silk molecular weight and freeze‐drying conditions influenced silk properties and enzyme interactions. This stabilization is leveraged to develop a linoleic acid electrochemical biosensor, integrating lipoxygenase with horseradish ...
Jacopo Giaretta, Xinyu (Vivian) Xie, Sandra Spoa, Hien A. Tran, Syamak Farajikhah, Sepehr Talebian, Jelena Rnjak‐Kovacina, Fariba Dehghani   +7 more
wiley   +1 more source

Dual Circularly Polarized Luminescence from Chiral Boron‐Embedded Polycyclic Aromatic Hydrocarbons

Angewandte Chemie, EarlyView.
Boron‐embedded polycyclic aromatic hydrocarbons featuring an asymmetric boron center coordinated by a proximal P═O group were synthesized. Anthracene‐fused boracyclic derivatives show dual circularly polarized luminescence (CPL) arising from excited‐state P═O⋯B dissociation, which converts point chirality into C−B axial chirality.
Tatsuya Mori, Yoshiharu Sano, Tomoyuki Ikai, Yuuya Kawasaki, Katsuhiko Tomooka, Takahiro Sasamori, Shigehiro Yamaguchi   +6 more
wiley   +2 more sources

Temperature‐Responsive Near‐Infrared Emission Enabled by Reversible π‐Umpolung with an Alkenyl‐Strapped Diarylboryl Unit

Angewandte Chemie, EarlyView.
Coordination of a Lewis base switches an electron‐accepting tricoordinate boron center into an electron‐donating tetracoordinate one. An alkenyl‐strapped diphenylthienylboryl π‐system undergoes phosphine‐induced reversible π‐umpolung, where transformation from an acceptor–acceptor–acceptor framework to a donor–acceptor–donor system gives rise to ...
Satoru Kitamura, Mika Sakai, Shigehiro Yamaguchi   +2 more
wiley   +2 more sources

Construction of a Two‐Dimensional Molecular Slab with a π‐Extended Hexaarylbenzene Molecule

Angewandte Chemie, EarlyView.
A 3D shape‐persistent molecule with a hexaarylbenzene structure consisting of six naphthothiophene diimide units enables the formation of a 2D molecular slab in the solid state, leading to a 2D interactive electronic structure suitable for application to n‐type organic field‐effect transistors.
Haruki Sanematsu, Rukiya Matsidik, Barun Dhara, Kazuo Takimiya   +3 more
wiley   +2 more sources

Double E─H Bond Activation of Ammonia and Water by Cyclic Gallaphosphene L(OCP)GaPGaL

Angewandte Chemie, EarlyView.
Cyclic gallaphosphene 1 undergoes a twofold E─H bond activation with ammonia and water via a beneficial interplay between the polar “GaPGa” unit and the electrophilic nature of the C center in the bridging PCO unit, yielding six‐membered heterocycles 2 and 3, in which both nucleophilic phosphorus atoms are protonated.
Mahendra K. Sharma, Christoph Wölper, Gebhard Haberhauer, Stephan Schulz   +3 more
wiley   +2 more sources

Mild Generation of Highly Nucleophilic N‐Heterocyclic Carbene Boryl Anion From Neutral sp2–sp3 Diboron Reagents and Its Applications in Nucleophilic Borylation

Angewandte Chemie, EarlyView.
A less hindered and highly nucleophilic N‐heterocyclic carbene (NHC) boryl anion is generated at room temperature by reacting sp2–sp3 diboron reagent (NHC)BH2Bpin with KOtBu. This highly reactive anion demonstrates broad reactivity with various electrophiles, including those traditionally considered inert, enabling their efficient borylation.
Weixuan Sun, Peiqi Zhang, Hairong Lyu
wiley   +2 more sources