Results 101 to 110 of about 8,870 (277)

Fused Ring Engineering Induced Topology Control in Covalent Organic Frameworks: Unlocking Promoted Photocatalytic H2O2 Production and Selective Methane Oxidation

Angewandte Chemie, EarlyView.
By modulating the topological structures of two N‐heterocycle‐based covalent organic frameworks, Phen‐TTA with a kgd‐v topology exhibits narrower optical bandgap, lower exciton binding energy, and faster charge‐carrier kinetics compared to O‐TTA with an hcb topology.
Lei Wang, Zhipeng Xie, Xinyi Zeng, Hetao Xu, Mingyue Wang, Jie Yang, Chao Lin, Wandong Xing, Zhengxiao Guo, Xiong Chen   +9 more
wiley   +2 more sources

Selective Synthesis of Bis-Heterocycles via Mono- and Di-Selenylation of Pyrazoles and Other Heteroarenes. [PDF]

ACS Omega, 2022
Kour J, Khajuria P, Verma PK, Kapoor N, Kumar A, Sawant SD.   +5 more
europepmc   +1 more source

Synthesis and biological activities of novel bis‐heterocyclic pyrrodiazole derivatives

Heteroatom Chemistry, 2008
AbstractNovel structures of bis‐heterocyclic pyrrodiazole derivatives containing pyrazole were designed and synthesized. The title compounds were characterized by 1H NMR, IR, MS, and elemental analysis. Biological activities of three intermediate compounds and 25 pyrrodiazole derivatives were tested in vivo and in vitro.
Feng‐Qi He, Xing‐Hai Liu, Bao‐Lei Wang, Zheng‐Ming Li   +3 more
openaire   +1 more source

Janus‐Type Electrostatic Potential Gradient‐Activated Dynamic Zn2+‐Coordinating Nitrogen Sites in Molecularly Locked Nanocellulose Separators for Stable Zinc‐Ion Batteries

Advanced Science, EarlyView.
A multifunctional benzimidazole‐terminated CNF separator is constructed via a PEI‐mediated covalent locking strategy, generating dense zincophilic sites that accelerate Zn2+ transport and desolvation while enabling uniform Zn (002) deposition and suppressing side reactions.
Jie Liang, Shuxin Yang, Shuaiqi Zhao, Haitao Yang, Jingyuan Li, Jiaming Dong, Junwen Duan, Hao Yang, Yue Li, Yaxin Wang, Meilin Li, Ying Liu, Zhitao Shen, Rong Liu, Ruirui Cao, Fumin Li, Minshen Zhu, Yang Huang   +17 more
wiley   +1 more source

Azetidinylideneketenimines as a Multimodal Synthetic Platform: Coordination Chemistry and Cycloaddition‐Triggered Transformations

Angewandte Chemie, EarlyView.
Cross‐coupling/homologation sequence between a stable three‐membered‐ring carbene and isocyanides enables facile and rapid access to novel methyleneketenimines and the first bis(methyleneketenimine). Reactivity studies gave rise to the first methyleneketenimine‐transition metal complexes, unique multimodal reactivity ranging from CO2, isocyanate ...
Taichi Koike, Keisuke Ito, Shintaro Ishida, Takeaki Iwamoto   +3 more
wiley   +2 more sources

Synthesis and Biological Activity of 3-(Heteroaryl)quinolin-2(1H)-ones Bis-Heterocycles as Potential Inhibitors of the Protein Folding Machinery Hsp90. [PDF]

Molecules, 2022
Larghi EL, Bruneau A, Sauvage F, Alami M, Vergnaud-Gauduchon J, Messaoudi S.   +5 more
europepmc   +1 more source

Syntheses and medicinal chemistry of spiro heterocyclic steroids

Beilstein Journal of Organic Chemistry
There is compelling evidence that incorporating a heterocyclic moiety into a steroid can alter its pharmacological and pharmacokinetic properties, driving intense interest in the synthesis of such hybrids among research groups. In this review, we present
Laura L. Romero-Hernández, Ana Isabel Ahuja-Casarín, Penélope Merino-Montiel, Sara Montiel-Smith, José Luis Vega-Báez, Jesús Sandoval-Ramírez   +5 more
doaj   +1 more source

2,2′-(Propane-1,3-diyl)bis(2H-indazole)

Acta Crystallographica Section E, 2011
The title molecule, C17H16N4, is a bis-indazole crystallized in the rare 2H-tautomeric form. Indazole heterocycles are connected by a propane C3 chain, and the molecule is placed on a general position, in contrast to the analogous compound with a central
Saúl Ovalle, Sylvain Bernès, Nancy Pérez Rodríguez, Perla Elizondo Martínez   +3 more
doaj   +1 more source

Innovations in Catalytic Syntheses of Bis- and Halogenated Heterocycles [PDF]

Transition metals in organic synthesis have been a groundbreaking advancement, shaping the field over the past three decades. Transition metal-catalyzed reactions have introduced novel mechanistic pathways to access previously unattainable small ...
Arora, Ramon
core   +1 more source

Decoupling Intrinsic Molecular Efficacy From Platform Effects: An Interpretable Machine Learning Framework for Unbiased Perovskite Passivator Discovery

Advanced Science, EarlyView.
This study establishes an interpretable machine learning framework that disentangles the intrinsic molecular efficacy of passivators from experimental platform effects—enabling unbiased, high‐throughput discovery of effective perovskite surface modifiers.
Jing Zhang, Ziyuan Li, Shan Gao, Zhen Zhu, Jing Wang, Xiangmei Duan   +5 more
wiley   +1 more source