Results 61 to 70 of about 58,285 (293)

Sulfur-Nitrogen Heterocycles

Molecules, 2005
n ...
Tomás Torroba, Maria García-Valverde   +1 more
doaj   +1 more source

Mechanochemical synthesis of some heterocyclic molecules using Sonogashira cross-coupling reaction and their anticancer activities

Results in Chemistry, 2020
A greener strategy for the synthesis of some functionalized heterocycles have been developed using Sonogashira cross-coupling reaction of furfural derived isoxazolidine and isoxazoline derivatives.
Bhaskar Chakraborty, Esmita Chettri
doaj   +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

Aromaticities of Five Membered Heterocycles through Dimethyldihydropyrenes Probe by Magnetic and Geometric Criteria

Journal of Chemistry, 2015
Aromaticities of five membered heterocycles, containing up to three heteroatoms, are quantified through the dimethyldihydropyrene (DHP) probe. Bond fixation caused by the fusion of heterocycles to the dimethyldihydropyrene nucleus (DHPN) was measured by ...
Maria, Khurshid Ayub
doaj   +1 more source

Quinoline: A versatile heterocyclic

Saudi Pharmaceutical Journal, 2013
Quinoline or 1-aza-naphthalene is a weak tertiary base. Quinoline ring has been found to possess antimalarial, anti-bacterial, antifungal, anthelmintic, cardiotonic, anticonvulsant, anti-inflammatory, and analgesic activity. Quinoline not only has a wide range of biological and pharmacological activities but there are several established protocols for ...
Marella, Akranth, Tanwar, Om Prakash, Saha, Rikta, Ali, Mohammad Rahmat, Srivastava, Sandeep, Akhter, Mymoona, Shaquiquzzaman, Mohammad, Alam, Mohammad Mumtaz   +7 more
openaire   +2 more sources

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

Polyoxometalate catalysts for the synthesis of N-heterocycles

Polyoxometalates
N-Heterocycle compounds are crucial scaffolds in natural products, synthetic molecules, agricultural chemicals, and pharmaceuticals. Hence, green catalytic systems for the synthesis of N-heterocycles have been widely researched in organic synthesis and ...
Qilong Hu, Ke Li, Xuejiao Chen, Yufeng Liu, Guoping Yang   +4 more
doaj   +1 more source

Synthesis of heterocycles and fused heterocycles catalyzed by nanomaterials

RSC Advances, 2015
The application of nanomaterials as heterogeneous catalyst for the synthesis of different heterocyclic systems is reviewed.
Ahmed H. M. Elwahy, Mohamed R. Shaaban
openaire   +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

Reactivity and Stability of (Hetero)Benzylic Alkenes via the Wittig Olefination Reaction

Molecules
Wittig olefination at hetero-benzylic positions for electron-deficient and electron-rich heterocycles has been studied. The electronic effects of some commonly used protective groups associated with the N-heterocycles were also investigated for alkenes ...
Ajmir Khan, Mohammed G. Sarwar, Sher Ali
doaj   +1 more source