Results 131 to 140 of about 699,324 (261)

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

First Nucleophilic Aromatic Substitution of Annelated Pyrazole

, 2016
3-Chloropyrazolo[3,4-c]quinoline 5, 3-chloropyrazolo[3,4-c]isoquinoline 6, 1,2-dihydro-1,2-dimethylpyrazolo[3,4-c]quinolin-3-one 8, and 1,2-dihydro-1,2-dimethylpyrazolo[3,4-c]isoquinolin-3-one 10 were obtained by acid-induced nucleophilic aromatic ...
Jan Pawlas (2335360), Per O. Huusfeldt (3028869), Palle Jakobsen (3026226), Per Vedsø (2730025), Mikael Begtrup (1796404)   +4 more
core   +1 more source

A new platform for the synthesis of diketopyrrolopyrrole derivatives via nucleophilic aromatic substitution reactions

Beilstein Journal of Organic Chemistry
Diketopyrrolopyrroles (DPPs) are a versatile group of dyes and pigments with valuable optoelectronic properties. In this work we report the synthesis of highly fluorescent DPP derivatives through straightforward nucleophilic aromatic substitution ...
Vitor A. S. Almodovar, Augusto C. Tomé
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

Direct synthesis of covalent triazine-based frameworks (CTFs) through aromatic nucleophilic substitution reactions. [PDF]

RSC Adv, 2019
Chen T, Li WQ, Hu WB, Hu WJ, Liu YA, Yang H, Wen K.   +6 more
europepmc   +1 more source

Ruthenium-mediated nucleophilic aromatic substitution of hydrogen in benzene

The direct functionalization of unactivated hydrocarbons remains a significant challenge in modern chemistry. In this study, we demonstrate that a simple ruthenium complex featuring a chelating tBuPN ligand can mediate the nucleophilic aromatic ...
Sub Structural Biochemistry, Broere, Daniël L J, Organic Chemistry and Catalysis, Park, Bohyun, Baik, Mu-Hyun, Gabbert, Philip, Hwang, Donghun, Sub Organic Chemistry and Catalysis, Lutz, Martin, Structural Biochemistry, Melnikov, Stanislav   +10 more
core   +2 more sources

Synthesis of 1H-quinazoline-4-ones using intramolecular aromatic nucleophilic substitution

ARKIVOC, 2003
W. Russell Bowman, Harry Heaney, Philip H. G. Smith   +2 more
doaj   +1 more source

Nucleophilic Aromatic Substitution with Ethylenediamine. [PDF]

Acta Chemica Scandinavica, 1965
Bo Lamm, Finn Christenssen, Nils Jakob Gröndahl, Charles Guthrie, Merv Hinton   +4 more
openaire   +1 more source

Photochemical aromatic substitution

, 2003
The photochemical aromatic substitution reactions described within this article are mainly devoted to homocyclic aromatic compounds. The work described is focused on the mechanism of the various reactions described.
Karapire C., Icli S.
core