Results 71 to 80 of about 3,269,112 (357)

NH3‐Guided Low‐Temperature Nanostructural Refinement Boosts Visible‐Light‐Driven H2O2 Synthesis in Ionic Carbon Nitrides

Advanced Materials, EarlyView.
A nanostructural refinement strategy is reported for KPHI photocatalysts using NH4Cl in a molten salt environment to induce coherent domain fragmentation and controlled cyano defect formation. This dual modification promotes n→π* transitions, enhances charge separation, and accelerates ORR kinetics, yielding exceptional AQY values of 49% (410 nm) and 5%
Jaya Bharti, Jokotadeola Odutola, Zahra Hajiahmadi, Karlo Nolkemper, Zhihong Tian, Haijian Tong, Vitaliy Shvalagin, Thomas D. Kühne, Tero‐Petri Ruoko, Christian Mark Pelicano   +9 more
wiley   +1 more source

Ultrasound-assisted green synthesis of 1,4-disubstituted 1,2,3-triazoles using natural polymer supports

Scientific Reports
The advent of click chemistry has significantly accelerated the synthesis of 1,2,3-triazoles, key structures found in numerous biologically active and pharmaceutical compounds.
Khatereh Haseli, Maryam Esmkhani, Shahrzad Javanshir   +2 more
doaj   +1 more source

Magnetic decorated 5-sulfosalicylic acid grafted to chitosan: A solid acid organocatalyst for green synthesis of quinazoline derivatives

Carbohydrate Polymer Technologies and Applications
In this research, a new magnetically decorated multifunctional solid acid was designed and prepared conveniently by grafting of 5-sulfosalicylic acid (SSA) onto the chitosan (CS) backbone using toluene-2,4-diisocyanate (TDI) linker for the first time ...
Reyhaneh Peyvasteh Sourkouhi, Mohammad G. Dekamin, Ehsan Valiey, Mohammad Dohendou   +3 more
doaj   +1 more source

Green synthesis of highly functionalized heterocyclic bearing pyrazole moiety for cancer-targeted chemo/radioisotope therapy

BMC Chemistry, 2023
New derivatives of heterocyclic bearing pyrazole moiety were synthesized (eight new compounds from 2 to 9) via green synthesis methods (microwave-assisted and grinding techniques).
Kurls E. Anwer, Galal H. Sayed, Basma M. Essa, Adli A. Selim   +3 more
doaj   +1 more source

tert-Butyl 5-methoxy-3-pentylindole-1-carboxylate [PDF]

, 2004
he molecule of the title compound, C₁₉H₂₇NO₃, is essentially planar, with all non-H atoms within 0.2 Å of the nine-membered indole plane, except for the three tert-butyl C atoms.
Coleman, Claire M., Gallagher, John F., O'Shea, Donal F.   +2 more
core   +1 more source

Heptazine‐Assisted Multi‐Resonance TADF Emitters With Fast Reverse Intersystem Crossing for Efficient Solution‐Processed OLEDs

Advanced Materials, EarlyView.
Heptazine‐assisted MR‐TADF emitters enable narrowband yellow emission with high efficiency at high luminance in solution‐processed OLEDs. In doped films, HAP‐3CzBN achieves a record‐fast kRISC of 1.19 × 106 s−1. The optimized HAP‐3CzBN devices deliver 15.5% EQEmax with negligible roll‐off at 1000 cd m−2, 11.2% at 10,000 cd m−2, and a benchmark 20.3 ...
Changfeng Si, Katrina Bergmann, Kunping Guo, Gert‐Jan A. H. Wetzelaer, Paul W. M. Blom, Zachary M. Hudson   +5 more
wiley   +1 more source

Preparation of magnetic decorated polyacrylonitrile-grafted chitosan as a new bio-inspired nanocatalyst for the synthesis of dihydropyrano[2,3-c]pyrazole and 2-amino-3-cyano-4H-pyran derivatives

Scientific Reports
This research reports a novel magnetized polyacrylonitrile-modified chitosan (CS-g-PAN/Fe3O4) nanomaterial, as a heterogeneous catalyst, for multicomponent reactions (MCRs). Appropriate characterization using techniques such as Fourier transform infrared
Niloufar Nashibi, Mohammad G. Dekamin, Ali Maleki   +2 more
doaj   +1 more source

5-(5-Bromo-2-hydroxy-3-methoxyphenyl)-7-methyl-4,5,6,7-tetrahydro[1,2,4]triazolo[1,5-a]pyrimidin-7-ol

Molbank, 2016
The title compound was synthesized by multicomponent condensation of 3-amino-1,2,4-triazole, acetone and 5-bromo-2-hydroxy-3-methoxybenzaldehyde. The structure was established by 1H-NMR, 13C-NMR, IR spectroscopy and LC-MS.
Michael Kondratiuk, Nikolay Yu. Gorobets, Yuriy V. Sedash, Mustafa K. Gümüş, Sergey M. Desenko   +4 more
doaj   +1 more source

Dehydroalanine and Lysinoalanine in Thermolyzed Casein do not Promote Colon Cancer in the Rat [PDF]

, 2008
Thermolysis of proteins produces xenobiotic amino-acids such as the potentially toxic lysinoalanine, and the alkylating agent, dehydro¬alanine, which have been considered possible health hazards.
AIN, Bachmeier, Bartone, Bird, Cattaneo, Cheftel, Corpet, Corpet, Corpet, Corpet, Corpet, Corpet, Corpet, De Groot, Deng, Denis E. Corpet, D’Agostina, Finley, Friedman, Gerb er, Kleyn, Kumar, Lutz, Maga, Masri, Michael C. Archer, Parnaud, Pintauro, Sternberg, Struthers, Sugimura, Sylviane Taché, Vlassara, Vo, W. Robert Bruce, Wenzel, Zhang   +36 more
core   +3 more sources

N‐heterocyclic Carbenes as Adhesion Promoters on Aluminum Alloy 6061

Advanced Materials Interfaces, EarlyView.
N‐heterocyclic carbenes as novel non‐toxic surface primers for aluminum alloys for better adhesive bonding, because strong adhesive bonding shouldn't come at the cost of poisoning the human body. The impact of NHC functionalization on adhesive joint strength and durability is also evaluated using a single‐lap‐shear test, following continuous exposure ...
Jashanpreet Kaur, Vikram Singh, Alban Morel, Amélie Ruest, Mark D. Aloisio, Cathleen M. Crudden, Janine Mauzeroll   +6 more
wiley   +1 more source