Results 41 to 50 of about 92,958 (217)

Synthesis, Characterization and Biological Evaluation of Some New Heterocyclic Compounds Derived from 2-Naphthol

Zanco Journal of Pure and Applied Sciences, 2020
    The present study deals with the synthesis, spectroscopic characterization, antibacterial and antifungal activities of novel series five-membered ring heterocyclic compounds containing nitrogen and sulfur heteroatoms.
Trifa Khalaf Mohammed, Media Noori Abdullah, Rostam Rasul Braiem   +2 more
doaj   +3 more sources

Design, synthesis, molecular docking and molecular dynamics studies of some 3-methoxy flavone derivatives as an anti-breast cancer agent

Discover Oncology
Objective The present study aimed to synthesize flavone hybrids with 3-methoxy substitution and an N-heterocyclic ring at the 4ʹ position of the flavone B ring and test their effectiveness against cancer. Method Molecular docking of 3-methoxy flavone was
Bharti S. Fegade, Somadatta Y. Chaudhari, Rupali V. Likhar, Ritesh P. Bhole, Pravin S. Uttekar, Sandeep S. Pathare, Swastika Maitra, Daniel Ejim Uti, Magdi E. A. Zaki, Esther Ugo Alum   +9 more
doaj   +1 more source

Synthesis and Biological Evaluation of Novel 5,7-Dichloro-1,3-benzoxazole Derivatives

Journal of Chemistry, 2013
A new class of 5,7-dichloro-1,3-benzoxazole derivatives 4–11 were synthesized by fusing 5,7-dichloro-2-hydrazino-1,3-benzoxazole 3 nucleus with aliphatic acids, active methylene compounds, and with selected esters to form heterocyclic ring systems like 1,
N. D. Jayanna, H. M. Vagdevi, J. C. Dharshan, T. R. Prashith Kekuda, B. C. Hanumanthappa, B. C. Gowdarshivannanavar   +5 more
doaj   +1 more source

Novel "green" catalysts for controlled ring-opening polymerization of lactide [PDF]

, 2010
Syntéza polylaktidu (PLA) polymerací za otevření kruhu cyklického monomeru (ROP) může být uskutečněna různými způsoby. Literatura uvádí více než 100 katalytických systémů, jejichž pomocí lze polylaktid a jiné biodegradabilní alifatické polyestery získat.
Surman, František
core  

N-heterocyclic germylenes: structural characterisation of some heavy analogues of the ubiquitous N-heterocyclic carbenes [PDF]

, 2019
The X-ray crystal structures of three N-heterocyclic germylenes (NHGes) have been elucidated including the previously unknown 1,3-bis(2,6-dimethylphenyl)diazagermol-2-ylidene (1).
Dodds, Christopher A., Kennedy, Alan R., Spicer, Mark D.   +2 more
core   +2 more sources

Transparent UV‐Curable Self‐Sanitizing Coatings Applicable to Diverse Surfaces and High‐Touch Screens to Mitigate Deadly Pathogen Transmission

Advanced Functional Materials, EarlyView.
Development of a transparent, self‐sanitizing antimicrobial coating technology applicable to a wide range of materials and surfaces‐including touchscreens, transparent substrates, and metal, plastic, and glass‐regardless of pathogen type. The spray‐coated, UV‐cross‐linked imidazole‐based quaternary ammonium chloride materials provide broad‐spectrum ...
Surjith Kumaran, Sumin Han, Euna Oh, Chunghee Jo, Hyerin Shin, Dae‐Hong Ko, Hyo‐Jick Choi   +6 more
wiley   +1 more source

Synthesis, Characterization and Antimicrobial Evaluation of Novel 6'- Amino-spiro[indeno[1,2-b]quinoxaline[1,3]dithiine]-5'-carbonitrile Derivatives

Acta Chimica Slovenica, 2020
l,3-Dithiin with two sulfurs in its structure is a six-membered, sulfur-containing heterocyclic compound. New derivatives of 6'-amino-2'-(arylidene)spiro[indeno[1,2-b]quinoxaline[1,3]dithiine]-5'-carbonitrile were prepared by the multi-component reaction
Mohammadreza Moghaddam-Manesh, Dadkhoda Ghazanfari, Enayatollah Sheikhhosseini, Mohammadreza Akhgar   +3 more
doaj   +1 more source

The Cu(OTf)2 catalysed microwave assisted synthesis of a new scaffold, 7-aryl-7,8-dihydropyrido[4,3-c]pyridazin-5(6H)-one [PDF]

, 2014
The synthesis of novel 7-aryl-7,8-dihydropyrido[4,3-c]pyridazin-5(6H)-ones is described including a one-step Mannich-type reaction followed by intramolecular ring closure of ethyl 3-methylpyridazine-4- carboxylate and aldimines, catalysed by the Lewis ...
De Coen, Laurens, Jatczak, Martyna, Mangelinckx, Sven, Muylaert, Koen, Stevens, Christian, Van Hecke, Kristof   +5 more
core   +2 more sources

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Acetylcholinesterase inhibitors with a thiazolium scaffold: structural features and binding modes

Журнал органічної та фармацевтичної хімії, 2019
Aim. To assess the structural features of substituents and the role of a thiazolium scaffold in mechanisms of acetylcholinesterase inhibition by thiazolium salts. Results and discussion. On the basis of activities of model compounds at pH 6.5 and pH 8.0
O. L. Kobzar, A. D. Ocheretniuk, I. M. Mischenko, O. P. Kozachenko, V. S. Brovarets, A. I. Vovk   +5 more
doaj   +1 more source