Results 41 to 50 of about 8,870 (277)

Efficient synthesis of novel bis(dihydropyrano[2,3c]pyrazoles), bis(4H-chromenes) and bis(dihydropyrano[3,2-c]chromenes) with amide functionality [PDF]

, 2019
A synthesis of novel bis(1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitriles), bis(4H-chromene-3-carbonitriles) and bis(dihydropyrano[3,2-c]chromenes), which are linked to aliphatic spacers via amide linkages was achieved via multicomponent reactions (MCR ...
Abdelhamid, Ismail A., Abdella, Amna M., Abdelmoniem, Amr M., Butenschön, Holger, Elwahy, Ahmed H.M.   +4 more
core   +2 more sources

[(Nitrato-κ2O,O′)(nitrito-κ2O,O′)(0.25/1.75)]bis(1,10-phenanthroline-κ2N,N′)cadmium(II)

Acta Crystallographica Section E, 2011
The reaction of cadmium nitrate and sodium nitrite in the presence of 1,10-phenanthroline yields the mixed nitrate–nitrite title complex, [Cd(NO2)1.75(NO3)0.25(C12H8N2)2].
Ezzatollah Najafi, Mostafa M. Amini, Seik Weng Ng   +2 more
doaj   +1 more source

Synthesis and antibacterial evaluation of novel hydrazones and bis-hydrazones containing 1,2,3-triazole moiety

Journal of Taibah University for Science, 2022
The current work reports the synthesis of novel hydrazones and bis-hydrazones containing 1,2,3-triazole moiety. Base-assisted aldol condensation of 4-acetyl-1,2,3-triazole 1a (R = NO2) and anisaldehyde (2) gave the corresponding chalcone 3 in 88% yield ...
Mohammed A. Baashen
doaj   +1 more source

Palladium-Catalyzed Cross-couplings of Lithium Arylzincates with Aromatic Halides. Synthesis of Analogues of Isomeridianin G and Evaluation as GSK- 3 Inhibitors

, 2009
International audienceSeveral analogues of Isomeridianin G have been synthesized using as a key step palladium-catalyzed crosscoupling reactions of lithium triorganozincates.
Chevallier, Floris, Mongin, Florence, Priem, Ghislaine, Seggio, Anne   +3 more
core   +3 more sources

Synthesis, Antitumor and Antiviral In Vitro Activities of New Benzotriazole-Dicarboxamide Derivatives

Frontiers in Chemistry, 2021
Cancer and viral infections continue to threaten humankind causing death worldwide. Hence, the discovery of new anticancer and antiviral agents still represents a major scientific goal.
Roberta Ibba, Sandra Piras, Paola Corona, Federico Riu, Roberta Loddo, Ilenia Delogu, Gabriella Collu, Giuseppina Sanna, Paola Caria, Tinuccia Dettori, Antonio Carta   +10 more
doaj   +1 more source

Convenient Synthesis of Some New Bi-heterocycles conataining 3-Aminoquinazolin-4(3H)-one and 1,2,4-Triazole moieties [PDF]

, 2014
Dicarboxylic acids, thiosemicarbazides and methylanthranilate reacted to give methyl-2-(3-(5-mercapto-4-s-1,2,4-triazol-3-yl)-3-oxoalkylamino)benzoates 4.
Mohamed, Mahmoud A., Zaki, Yasser H.
core   +1 more source

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

Advanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller, Florian Kerber, Kirsten Moritz, Steffen Dudczig, Konstantin Kraushaar, Thomas Schemmel, Jana Hubálková, Patrick Gehre, Christos G. Aneziris   +8 more
wiley   +1 more source

Synthesis and greener pastures biological study of bis-thiadiazoles as potential Covid-19 drug candidates [PDF]

, 2022
A novel series of bis- (Abdelhamid et al., 2017, Banerjee et al., 2018, Bharanidharan et al., 2022)thiadiazoles was synthesized from the reaction of precursor dimethyl 2,2′-(1,2-diphenylethane-1,2-diylidene)-bis(hydrazine-1-carbodithioate) and hydrazonyl
Al-Kaff, Nadia S., Bräse, Stefan, Gomha, Sobhi M., Khalil, Khaled D., Nayl, A. A., Riyadh, Sayed M., Said, Musa A.   +6 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

Facile and Convenient Synthesis of New Thieno[2,3-b]-Thiophene Derivatives

Molecules, 2010
A facile and convenient synthesis of bis(2-(1H-benzo[d]imidazol-2(3H)-ylidene)-3-oxopropanenitrile), bis((3-amino-5-(methylthio)-1H-pyrazol-4-yl)methanone) and bis(2-thioxo-1,2-dihydropyrimidine-5-carbonitrile) derivatives incorporating a thieno- [2,3-b ...
Abdullah Mohammad Al-Majid, Yahia Nasser Mabkhot, Nabila abd Elshafy Kheder   +2 more
doaj   +1 more source