Results 61 to 70 of about 24,929 (273)

Iodine-Catalyzed Diversity-Oriented Synthesis of 3,4-Heterocycle-Fused Coumarins from 4‑Aminocoumarins and Aurones in Different Solvent

An unprecedented protocol has been developed for the synthesis of 3,4-heterocycle-fused coumarins from 4-aminocoumarins and aurones through iodine-catalyzed cascade reactions.
Lin Ma (23007), Changhui Yang (18369449), Suyue Duan (18369452), Xianfu Shen (4817457), Zhen Jiang (846105), Dan Yue (695973), Xuequan Wang (697301), Chahui Du (18369446)   +7 more
core   +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

Synthetic Approaches for C-N Bonds by TiO2 Photocatalysis

Frontiers in Chemistry, 2019
Nitrogen-containing organic compounds possess the most important status in drug molecules and agricultural chemicals. More than 80% currently used drugs have at least a C-N bond.
Dongge Ma, Shan Zhai, Yi Wang, Anan Liu, Chuncheng Chen   +4 more
doaj   +1 more source

Heterocycle-Substituted α‑Methylene-γ-Butyrolactones Derivatives Synthesis, Antifungal Activity, and 3D-QSAR

, 2023
Developing fungicides from active botanical skeletons is one of the effective methods to tackle the resistance of plant pathogens. Based on our previous discoveries, a series of novel α-methylene-γ-butyrolactone (MBL) derivatives containing heterocycles ...
Yanqing Gao (2590384), Peng Lei (216846), Deyou Yang (11156637), Luwei Li, Guangyou Chen, Yanqing Gao, Heng Li, Deyou Yang, Guangyou Chen (16527130), Juntao Feng (4706986), Heng Li (6476), Peng Lei, Luwei Li (8482863), Juntao Feng   +13 more
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

4,12-Diselena-5,6,13,14-tetraazatricyclo[9.3.0.03,7]tetradeca-1(11),3(7),5,13-tetraene

IUCrData
In the title compound, C8H8N4Se2, two almost planar 1,2,3-selenadiazoles are annulated to a cycloocta-1,4-diene with a boat–chair conformation, giving the molecule a butterfly shape.
Dieter Schollmeyer, Heiner Detert
doaj   +1 more source

(2Z)-2-(4-Chlorobenzylidene)-4-[2-(2-oxooxazoliden-3-yl)ethyl]-3,4-dihydro-2H-1,4-benzothiazin-3-one

IUCrData, 2017
In the title molecule, C20H17ClN2O3S, the oxazolidine ring is oriented towards the benzothiazine moiety so that the centroid of the former is ca 5.05 Å from the sulfur atom of the latter.
Mohamed Ellouz, Nada Kheira Sebbar, Mohammed Boulhaoua, El Mokhtar Essassi, Joel T. Mague   +4 more
doaj   +1 more source

Atroposelective Construction of Axially Chiral Tetraarylethenes Via NHC‐Catalyzed Desymmetrization

Advanced Science, EarlyView.
We report the first NHC‐catalyzed atroposelective synthesis of axially chiral TAEs via oxidative desymmetrization of prochiral TAE dialdehydes. This catalytic strategy operates under mild conditions and accommodates a broad range of phenolic and nitrogen nucleophiles, delivering diverse axially chiral TAEs in good yields and up to 99% ee.
Yang‐Ze Zheng, Ting‐Rui Luan, Ming‐Hao Song, Zhaofeng Sun, Chuan‐Jun Lu, Long‐Long Xi, Ren‐Rong Liu   +6 more
wiley   +1 more source

N-[(1Z)-Cyclodec-5-yn-1-ylidene]hydroxylamine

IUCrData
The crystal structure of cyclodecynone oxime, C10H15NO, is reported. Two twist-boat-shaped cycloalkynes are centrosymmetrically connected via oxime hydrogen bridges. Deformation of the alkyne unit results from ring strain.
Heiner Detert, Dieter Schollmeyer
doaj   +1 more source

Syn-Ethyl 1-hydroxy-7-methoxy-2,3-dihydro-1H-pyrrolo[3,4-b]quinolone-3-carboxylate HCl Salt

Molbank, 2015
This short note describes a one-step synthesis of the title compound from commercially available starting materials and reports its full spectroscopic characterization data.
Marcus Baumann, Ian R. Baxendale
doaj   +1 more source