Results 101 to 110 of about 23,008 (222)

Mechanistic Investigations into Amination of Unactivated Arenes via Cation Radical Accelerated Nucleophilic Aromatic Substitution. [PDF]

J Am Chem Soc, 2022
Pistritto VA, Liu S, Nicewicz DA.
europepmc   +1 more source

Sequential Design of Activatable Photosensitizers for Ablation of Glioma Cells in Brain Cancer Tissues

Angewandte Chemie, EarlyView.
Gal‐SeNBD‐oleamide is an activatable photosensitizer (PS) with efficient uptake and selective, β‐galactosidase‐triggered activation in cancer cells, enabling efficient photodynamic ablation of glioma cells directly in brain tissue slices from mouse preclinical models and human glioblastoma patients.
Utsa Karmakar, Zhiming Cheng, Andrew D. M. Green, Sam Benson, Eleni Nestoros, Clarissa Lim, Justyna Cholewa‐Waclaw, Fabio de Moliner, Paula Lusarreta, Deborah Seah, Alsadeg Bilal, Neza Alfazema, Thibaud Aymoz‐Bressot, Gillian Morrison, Sonja Vermeren, Steven M. Pollard, Paul M. Brennan, Michael G. Tanner, Marc Vendrell   +18 more
wiley   +2 more sources

C(sp³)-Arylation by Conformationally Accelerated Intramolecular Nucleophilic Aromatic Substitution (S_NAr). [PDF]

Acc Chem Res, 2022
Wales SM, Saunthwal RK, Clayden J.
europepmc   +1 more source

Cobalt‐Catalyzed [2σ+2π] Cycloaddition via Site‐Selective Capture of Bicyclobutane Diradical

Angewandte Chemie, EarlyView.
We report a Co(II)‐catalyzed strategy that combines thermal activation of bicyclo[1.1.0]butane (BCBs) with site‐selective radical capture to furnish head‐to‐head fused bicyclo[2.1.1]hexanes via [2σ+2π] cycloaddition with indoles. Detailed mechanistic studies (31P NMR, EPR, CV, and DFT) support the catalytic pathway, while phosphine‐oxide trapping and X‐
Tanmayee Nanda, Alexander Umanzor, Julia Gartzke, Jeremy T. Maddigan‐Wyatt, Philipp Thielert, Stefan Weber, Sabine Richert, Shuming Chen, Daniel B. Werz   +8 more
wiley   +2 more sources

Dissipative Regenerative Chemiluminescence in Water: A Perylene‐Based Out‐of‐Equilibrium Light‐Emitting System

Angewandte Chemie, EarlyView.
Driven by sodium dithionite and hydrogen peroxide under mild aqueous conditions, a water‐soluble perylene bisimide undergoes reversible electron‐transfer cycles that generate its emissive excited state without dye decomposition. We define this out‐of‐equilibrium system as chemically fueled regenerative chemiluminescence (CFRCL), opening new avenues for
Luca Morgan, Chiara Alberoni, Dario Alessi, Daniel Morales‐Martinez, Sara Bonacchi, Alessandro Aliprandi   +5 more
wiley   +2 more sources

Fluorene‐Framework Engineering Enables Narrowband Red Multi‐Resonance Emitters for High‐Efficiency With Negligible Roll‐Off Toward BT.2020

Angewandte Chemie, EarlyView.
σ‐Decoupled C9 fluorene‐framework topology control enables narrowband red MR emitters. SF‐BNO and PF‐BNO share the same BNO core, but differ in closed/open fluorene ring closure. SF‐BNO improves steric shielding and stability, while PF‐BNO enhances PLQY, orientation, and efficiency. Ex‐PSF and TE‐OLED architectures deliver ultra‐low efficiency roll‐off
Aradhya Rajput, Nisha Vergineya S, Subramanian Muruganantham, Meghana Tirupati, Odugu Pavan Kumar, Jun‐Yun Kim, Mi Young Chae, Jang Hyuk Kwon   +7 more
wiley   +2 more sources

2,3,5,6-Tetrafluoro-[N-(3-aminopropyl)-ε-caprolactam]-4-pyridine

Molbank
The title compound was synthesized at a near-quantitative yield using the nucleophilic aromatic substitution of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) with perfluoropyridine (PFP). The purity and structure were determined by NMR (1H, 13C, 19F), GC-EIMS,
Chadron M. Friesen, Nathan J. Weeks, Scott T. Iacono   +2 more
doaj   +1 more source

High-Yield Synthesis of N⁴-(3-Chloro-4-fluorophenyl)-7-((4-methoxybenzyl)thio)quinazoline-4,6-diamine via N-(3-Chloro-4-fluorophenyl)-7-((4-methoxybenzyl)thio)-6-nitroquinazolin-4-amine

Molbank
The target compound, N4-(3-chloro-4-fluorophenyl)-7-((4-methoxybenzyl)thio)quinazoline-4,6-diamine, was synthesized in two steps from N-(3-chloro-4-fluorophenyl)-7-fluoro-6-nitroquinazolin-4-amine by a nucleophilic aromatic substitution, yielding N-(3 ...
Susila Thapa, Jeanne L. Bolliger
doaj   +1 more source

Nucleophilic Aromatic Substitution (S_NAr) and Related Reactions of Porphyrinoids: Mechanistic and Regiochemical Aspects. [PDF]

European J Org Chem, 2021
Sample HC, Senge MO.
europepmc   +1 more source

A broadly applicable quantitative relative reactivity model for nucleophilic aromatic substitution (S_NAr) using simple descriptors. [PDF]

Chem Sci, 2022
Lu J, Paci I, Leitch DC.
europepmc   +1 more source