Results 41 to 50 of about 88,147 (300)

Synthesis of N-perfluoroalkyl-3,4-disubstituted pyrroles by rhodium-catalyzed transannulation of N-fluoroalkyl-1,2,3-triazoles with terminal alkynes

Beilstein Journal of Organic Chemistry, 2021
The rhodium-catalyzed transannulation of N-perfluoroalkyl-1,2,3-triazoles with aromatic and aliphatic terminal alkynes under microwave heating conditions afforded N-perfluoroalkyl-3,4-disubstituted pyrroles (major products) and N-fluoroalkyl-2,4 ...
Olga Bakhanovich, Viktor Khutorianskyi, Vladimir Motornov, Petr Beier   +3 more
doaj   +1 more source

Rapid Assembly of Pyrrole-Ligated 1,3,4-Oxadiazoles and Excellent Antibacterial Activity of Iodophenol Substituents

Molecules, 2023
Pyrrole-ligated 1,3,4-oxadiazole is a very important pharmacophore which exhibits broad therapeutic effects such as anti-tuberculosis, anti-epileptic, anti-HIV, anti-cancer, anti-inflammatory, antioxidant, and antibacterial activities. A one-pot Maillard
Hyein Kim, Lina Gu, Huisu Yeo, Umji Choi, Chang-Ro Lee, Haiyang Yu, Sangho Koo   +6 more
doaj   +1 more source

Magnetic properties of polypyrrole - coated iron oxide nanoparticles

, 2004
Iron oxide nanoparticles were prepared by sol -gel process. Insitu polymerization of pyrrole monomer in the presence of oxygen in iron oxide ethanol suspension resulted in a iron oxide - polypyrrole nanocomposite.
Chauhan P, Dormann J H, Huang C L, International Centre for Diffraction Data, Raksha Sharma, S Annapoorni, Skomski R, Subhalakshmi Lamba, Weis J J   +8 more
core   +2 more sources

Photoreversible interconversion of a phytochrome photosensory module in the crystalline state. [PDF]

, 2020
A major barrier to defining the structural intermediates that arise during the reversible photointerconversion of phytochromes between their biologically inactive and active states has been the lack of crystals that faithfully undergo this transition ...
Aller, Pierre, Alonso-Mori, Roberto, Batyuk, Alexander, Bhowmick, Asmit, Brewster, Aaron S, Burgie, E Sethe, Butryn, Agata, Clinger, Jonathan A, Cohen, Aina E, Fuller, Franklin D, Gul, Sheraz, Heinemann, Joshua V, Hunter, Mark S, Kern, Jan, Kim, In-Sik, Koglin, Jason E, Miller, Mitchell D, O'Riordan, Lee J, Orville, Allen M, Pham, Cindy C, Phillips, George N, Sauter, Nicholas K, Sutherlin, Kyle D, Vierstra, Richard D, Yachandra, Vittal K, Yano, Junko, Young, Iris D   +26 more
core  

Visualizing intramolecular distortions as the origin of transverse magnetic anisotropy [PDF]

, 2018
The magnetic properties of metal–organic complexes are strongly influenced by conformational changes in the ligand. The flexibility of Fe-tetra-pyridyl-porphyrin molecules leads to different adsorption configurations on a Au(111) surface.
Czekelius, Constantin, Franke, Katharina J., Heinrich, Benjamin W., Lotze, Christian, Rolf, Daniela   +4 more
core   +3 more sources

Functionalization of Single and Multi-Walled Carbon Nanotubes with Polypropylene Glycol Decorated Pyrrole for the Development of Doxorubicin Nano-Conveyors for Cancer Drug Delivery

Nanomaterials, 2020
A recently reported functionalization of single and multi-walled carbon nanotubes, based on a cycloaddition reaction between carbon nanotubes and a pyrrole derived compound, was exploited for the formation of a doxorubicin (DOX) stacked drug delivery ...
Chiara Pennetta, Giuseppe Floresta, Adriana Carol Eleonora Graziano, Venera Cardile, Lucia Rubino, Maurizio Galimberti, Antonio Rescifina, Vincenzina Barbera   +7 more
doaj   +1 more source

Rational Design of a Low-Data Regime of Pyrrole Antioxidants for Radical Scavenging Activities Using Quantum Chemical Descriptors and QSAR with the GA-MLR and ANN Concepts

Molecules, 2023
A series of pyrrole derivatives and their antioxidant scavenging activities toward the superoxide anion (O2•−), hydroxyl radical (•OH), and 1,1-diphenyl-2-picryl-hydrazyl (DPPH•) served as the training data sets of a quantitative structure–activity ...
Wanting Xie, Sopon Wiriyarattanakul, Thanyada Rungrotmongkol, Liyi Shi, Amphawan Wiriyarattanakul, Phornphimon Maitarad   +5 more
doaj   +1 more source

THEORETICAL CALCULATIONS ABOUT THE THERMAL STABILITY AND DETONATION CHARACTER OF NITRAMINO-SUBSTITUTED PYRROLE

Química Nova
A series of nitramino-derivatives of pyrrole were designed through introducing the nitramino group into pyrrole ring to look for high-energy-density compounds.
Butong Li, Lulin Li, Yu Wang
doaj   +1 more source

Targeted Derepression of the Human Immunodeficiency Virus Type 1 Long Terminal Repeat by Pyrrole-Imidazole Polyamides [PDF]

, 2002
The host factor LSF represses the human immunodeficiency virus type 1 long terminal repeat (LTR) by mediating recruitment of histone deacetylase. We show that pyrrole-imidazole polyamides targeted to the LTR can specifically block LSF binding both in ...
Coull, Jason J., Dervan, Peter B., He, Guocheng, Margolis, David M., Melander, Christian, Rucker, Victor C.   +5 more
core   +1 more source

The D-ring, Not the A-ring, Rotates in Synechococcus OS-B' Phytochrome [PDF]

, 2014
Phytochrome photoreceptors in plants and microorganisms switch photochromically between two states, controlling numerous important biological processes.
Borucki, Borucki, Cornilescu, Essen, Falk, Falk, Goddard, Hahn, Hahn, Hu, Hughes, Inomata, Inomata, Ishizuka, Lamparter, Li, Mailliet, Rockwell, Rockwell, Rohmer, Rohmer, Rohmer, Röben, Rüdiger, Schmidt, Song, Song, Song, Strauss, Takegoshi, Thurber, Ulijasz, Ulijasz, van Thor, Wagner, Wagner, Yang, Yang, Yang, Yang, Zhao   +40 more
core   +2 more sources