Results 91 to 100 of about 50,011 (341)

Synthesis and reactions of 1-amino-1,5,6,10b-tetrahydroimidazo[2,1-a]isoquinolin-2(3H)-ones [PDF]

, 2008
1-Amino-1,5,6,10b-tetrahydroimidazo[2,1-a]isoquinolin-2(3H)-ones, as previously unknown ring-annelated isoquinolines with a 3-aminoimidazolidin-4-one scaffold, were selectively prepared upon reacting 2-carbamoylmethyl- or 2-ethoxycarbonylmethyl-3,4 ...
De Kimpe, Norbert, Holzer, Wolfgang, Mangelinckx, Sven, Martynaitis, Vytas, Solovjova, Joana, Šačkus, Algirdas   +5 more
core   +2 more sources

The Effect of Pore Functionality in Multicomponent Covalent Organic Frameworks on Stable Long‐Term Photocatalytic H2 Production

Advanced Energy Materials, EarlyView.
Five COFs are synthesized through a multicomponent reaction, preserving a similar backbone while introducing varying pore functionalities. All COFs demonstrate excellent chemical stability and sustained H2 production under sunlight for 7‐15 days. The imidazole‐functionalized COF exhibits the highest H2 production, which can be attributed to its high ...
Prasenjit Das, Gouri Chakraborty, Jin Yang, Jérôme Roeser, Hüseyin Küçükkeçeci, Anh Dung Nguyen, Michael Schwarze, Jose Gabriel, Christopher Penschke, Shengjun Du, Vincent Weigelt, Islam E. Khalil, Johannes Schmidt, Peter Saalfrank, Martin Oschatz, Jabor Rabeah, Reinhard Schomäcker, Franziska Emmerling, Arne Thomas   +18 more
wiley   +1 more source

amide hydrazones [PDF]

, 2008
Citation: 'amide hydrazones' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.A00264 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +2 more sources

hydrazones

, 2014
Citation: 'hydrazones' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.H02884 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Advances and Challenges in Micro/Nanocarrier‐Based Dermal Drug Delivery Systems for Acne Treatment

Advanced NanoBiomed Research, EarlyView.
Topical acne treatment faces challenges from skin barriers and complex causes. Micro/nanocarriers improve drug delivery by enhancing bioavailability, targeting, and duration. Combining carriers creates synergistic effects for systematic intervention.
Jintao Yang, Jie Chen, Yunmiao Ma, Qingwei Zhou, Yu Kong, Yingxiang Chen, Junjie Chi, Haihua Hu   +7 more
wiley   +1 more source

Synthesis, Cytotoxicity and Antiproliferative Effect of New Pyrrole Hydrazones

Molecules
Novel pyrrole-based carbohydrazide (1) and hydrazones (1A–D) were synthesized, characterized, and subjected to spectroscopic studies. The hydrazones were obtained by reacting a pyrrole hydrazide with substituted pyrrole aldehydes.
Stanislava Vladimirova, Rossitsa Hristova, Ivan Iliev   +2 more
doaj   +1 more source

Synthesis and Antimicrobial Activity of Some Pyridinium Salts

Molecules, 2009
Some substituted benzylidenehydrazinylpyridinium derivatives bearing benzyl, ethylphenyl and propylphenyl groups on the pyridinium nitrogen were synthesized and screened for possible antibacterial and antifungal activities against Staphylococcus aureus ...
Hüseyin Taşlı, Ercin Erciyas, Vildan Alptüzün, Sülünay Parlar   +3 more
doaj   +1 more source

Green Synthesis, SC-XRD, Non-Covalent Interactive Potential and Electronic Communication via DFT Exploration of Pyridine-Based Hydrazone

Crystals, 2020
Ultrasound-based synthesis at room temperature produces valuable compounds greener and safer than most other methods. This study presents the sonochemical fabrication and characterization of a pyridine-based halogenated hydrazone, (E)-2-((6-chloropyridin-
Akbar Ali, Muhammad Khalid, Saba Abid, Muhammad Nawaz Tahir, Javed Iqbal, Muhammad Ashfaq, Fariha Kanwal, Changrui Lu, Muhammad Fayyaz ur Rehman   +8 more
doaj   +1 more source

End-to-end thiocyanato-bridged helical chain polymer and dichlorido-bridged copper(II) complexes with a hydrazone ligand: synthesis, characterisation by electron paramagnetic resonance and variable- temperature magnetic studies, and inhibitory effects on human colorectal carcinoma cells [PDF]

, 2012
The reactions of the tridentate hydrazone ligand, N’-[1-(pyridin-2-yl)ethylidene]acetohydrazide (HL), obtained by condensation of 2-acetylpyridine with acetic hyadrazide, with copper nitrate trihydrate in the presence of thiocyanate, or with CuCl2 ...
Das, Kuheli, Datta, Amitabha, Garribba, Eugenio, Hsiao, Ching-Sheng, Hsu, Chin-Lin, Huang, Jui-Hsien, Sinha, Chittaranjan   +6 more
core  

A broadened scope for the use of hydrazones as neutral nucleophiles in the presence of H-bonding organocatalysts [PDF]

, 2006
Using thioureas as H-bonding organocatalysts, nitroalkenes can be activated for the conjugate addition of hydrazones as neutral nucleophiles. Formaldehyde derivatives react at the azomethine carbon as expected, whereas hydrazones from enolizable ...
Bernardi, Luca, Fernández Fernández, Rosario Fátima, Fini, Franscesco, Lassaletta Simón, José María, Perez Herrera, Raquel, Pettersen, Daniel, Ricci, Alfredo, Sgarzani, Valentina   +7 more
core   +1 more source