Results 51 to 60 of about 5,641 (202)

Synthesis, Bacteriostatic and Anticancer Activity of Novel Phenanthridines Structurally Similar to Benzo[c]phenanthridine Alkaloids [PDF]

Molecules, 2018
In this study, we report the synthesis, antibacterial and anticancer evaluation of 38 novel phenanthridines that were designed as analogs of the benzo[c]phenanthridine alkaloids. The prepared phenanthridines differ from the benzo[c]phenanthridines in the absence of a benzene A-ring.
Pavel Lasák, Kamil Motyka, Vladimír Kryštof, Jakub Stýskala   +3 more
openaire   +5 more sources

Pioneering Metal‐Free Late‐Stage C−H Functionalization Using Acridinium Salt Photocatalysis

Chemistry – A European Journal, Volume 30, Issue 67, December 2, 2024.
Organic dyes are powerful photocatalysts in organic transformations due to their availability, adaptable absorption, and diverse structures. Acridinium‐based organo‐photocatalysts, notable for visible light responsiveness, efficiently functionalize inert C−H bonds under mild conditions without transition metals.
Shyamal Kanti Bera, Andrea Porcheddu
wiley   +1 more source

Color‐Stable, All‐Phosphorescent White Organic Light Emitting Diodes Using the Polariton‐Enhanced Purcell Effect

Advanced Functional Materials, Volume 34, Issue 52, December 23, 2024.
The operational lifetime and color stability of a stacked white emitting all‐phosphorescent OLEDs has been significantly improved through utilization of the plasmon‐exciton‐polariton‐enhanced (PEP) Purcell effect to extend the life of the blue phosphorescent sub‐element such that it ages at the same rate as the green and red phosphorescent elements ...
Claire Ε. Arneson, Haonan Zhao, Stephen R. Forrest   +2 more
wiley   +1 more source

The role of octadecanoids and functional mimics in soybean defense responses [PDF]

, 2003
Oxylipins of the jasmonate pathway and synthetic functional analogs have been analyzed for their elicitor like activities in an assay based on the induced accumulation of glyceollins, the phytoalexins of soybean (Glycine max L.), in cell suspension ...
Czarnecka E., Ellard-Ivey M., Graham T.L., Latunde-Dada A.O., Nojiri H., Schröder J., Schüler G., Siedow J.N.   +7 more
core   +1 more source

Regulating Chlorine and Hydrogen Atom Transfer for Selective Photoelectrochemical C─C Coupling by Cu‐coordination Effect at Semiconductor/Electrolyte Interfaces

Advanced Science, Volume 11, Issue 46, December 11, 2024.
A synergistic heterogeneous/homogeneous PEC strategy mediated by Cu2+ achieves a controllable radical‐induced C─C coupling reaction between aliphatic compounds with inert C(sp3)─H bond and a wide range of aromatics by using TiO2 photoanodes. Experimental studies and theoretical simulations reveal that the presence of Cu2+ regulates the formation of ...
Qiaozhen Li, Kun Dang, Lei Wu, Siqin Liu, Yuchao Zhang, Jincai Zhao   +5 more
wiley   +1 more source

An Efficient Synthesis of (NH)-Phenanthridinones via Ligand-Free Copper-Catalyzed Annulation [PDF]

[[journaltype]]國外[[incitationindex]]SCI[[ispeerreviewed]]
謝仁傑
core   +1 more source

Expanding the palette of phenanthridinium cations [PDF]

, 2014
5,6-Disubstituted phenanthridinium cations have a range of redox, fluorescence and biological properties. Some properties rely on phenanthridiniums intercalating into DNA, but the use of these cations as exomarkers for the reactive oxygen species (ROS ...
Acevedo, Amann, Amatore, Amii, Augustine, Barluenga, Blanchot, Blanksby, Bolognesi, Bourne, Bourne, Bourne, Chen, Cheng, Chiavarino, Chiavarino, Chéron, Coe, Darzynkiewicz, Deb, Diaba, Dimiza, Döbele, Exner, Fernández, García, Ghaneolhosseini, Giroldo, Glendening, Glendening, Glendening, Glukhovtsev, Goerigk, Goryunov, Hata, Hu, Huang, Huber, Ihmels, Intrieri, Ishihara, Ishii, Jain, Jankowiak, Jones, Jose, Kitson, Korotvicka, Kostiainen, Kubar, Kundu, Lallana, Lee, Leupin, Lewis, Liang, Liljenberg, Liljenberg, Liljenberg, Liu, Liu, Logan, Luedtke, Luedtke, Manetsch, Marivingt-Mounir, Marivingt-Mounir, Mayer, McBurney, Michalski, Michels, Molander, Nakanishi, O′Brien, O′Connor, Parenty, Park, Pliego, Prunkl, Radic, Rangarajan, Richmond, Robinson, Schmidt, Shaw, Sletten, Smith, Sotomayor, Stevens, Stojkovic, Sumerlin, Sun, Suzuki, Takeda, Tanaka, Tanaka, Tobisu, van der Wiel, Veale, Wainwright, Wakelin, Walls, Watkins, Weigend, Weinhold, Weinhold, Wolff, Yamaguchi, Zhang, Zhao, Zhao, Zhidkov, Zhidkov, Zielonka, Zille   +114 more
core   +4 more sources

Suppressing Inversion of a Chiral Polycyclic Aromatic Aza Monkey Saddle by Molecular Editing

Helvetica Chimica Acta, Volume 107, Issue 12, December 2024.
Abstract Chiral polycyclic aromatic hydrocarbons with monkey saddle topology are a fascinating class of negatively curved compounds. To make the monkey‐saddles valuable building blocks for chirality‐assisted synthesis (CAS) approaches, the inversion barriers between the two possible enantiomers need to be high enough to prevent interconversion under ...
Tobias Kirschbaum, Simone Felicia Ebel, Frank Rominger, Michael Mastalerz   +3 more
wiley   +1 more source

One-pot multi-reaction processes: synthesis of natural products and drug-like scaffolds [PDF]

, 2014
One-pot multi-reaction processes involving Overman rearrangements, metathesis cyclizations, and Diels–Alder reactions have been developed for the rapid and efficient synthesis of amino-substituted carbocyclic and heterocyclic compounds.
Calder, Ewen D.D., Grafton, Mark W., Sutherland, Andrew   +2 more
core   +1 more source

Isonitrile Photochemistry: A Functional Group Class Coming in from the Cold

Chemistry – A European Journal, Volume 30, Issue 64, November 15, 2024.
Isonitriles, often neglected for their unpleasant smell, have fascinated many generations of chemists thanks to unique reactivity modes. The present concept article, by retracing the seeds of isonitrile photochemistry, points out the hidden opportunities offered by visible light photo(redox) catalysis to promote key advancements in the field.
Mariateresa Giustiniano
wiley   +1 more source