Results 41 to 50 of about 597,754 (265)

Nucleophilic Aromatic Substitution of Unactivated Fluoroarenes Enabled by Organic Photoredox Catalysis [PDF]

open access: yes, 2020
Nucleophilic aromatic substitution (SNAr) is a classical reaction with well-known reactivity toward electron-poor fluoroarenes. However, electron-neutral and electron-rich fluoro(hetero)arenes are considerably underrepresented.
Pistritto, Vincent A.   +2 more
core   +1 more source

A novel quinazolinone insulin receptor inhibitor and its synergy with an EGFR inhibitor in glucose‐driven glioblastoma

open access: yesMolecular Oncology, EarlyView.
The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka   +9 more
wiley   +1 more source

Regioselective Tele‐Substitution of Aroyl Chlorides via Activation by an Al/P Frustrated Lewis Pair

open access: yesChemistryEurope
The development of tele‐substitution reactions is significant in organic synthesis. However, most reported tele‐substitutions have been limited to nucleophilic aromatic substitution.
Hirotaka Okamoto   +2 more
doaj   +1 more source

4,4′-(((Perfluoropropane-2,2-diyl)bis(4,1-phenylene))bis(oxy))-bis(2,3,5,6-tetrafluoropyridine)

open access: yesMolbank, 2023
The title compound was synthesized in near-quantitative yield using nucleophilic aromatic substitution of 4,4′-(hexafluoroisopropylidene)diphenol (BPAF) with perfluoropyridine (PFP). The purity and structure were determined by NMR (1H, 13C, 19F), GC–EIMS,
Katelyn D. Thompson   +3 more
doaj   +1 more source

Some studies of the reactions of carbon nucleophiles with aromatic nitro compounds [PDF]

open access: yes, 1996
Some reactions of aromatic nitro-compounds with carbon nucleophiles have been investigated. The techniques used include NMR spectroscopy, UV-visible spectroscopy and stopped-flow spectrophotometry.
Duffield, Gaynor Louise
core  

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

open access: yesFEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey   +4 more
wiley   +1 more source

Identification and removal of a cryptic impurity in pomalidomide-PEG based PROTAC

open access: yesBeilstein Journal of Organic Chemistry
Chemically induced dimerization is a powerful tool for studying protein function, wherein the IMiD (the “immunomodulatory drug”) class of PROTAC molecules with a PEG linker is frequently used to promote targeted protein degradation. The standard protocol
Bingnan Wang, Yong Lu, Chuo Chen
doaj   +1 more source

Reaction-Based Amine and Alcohol Gases Detection with Triazine Ionic Liquid Materials

open access: yesMolecules, 2019
We demonstrated in this work the use of affinity ionic liquids, AIL 1 and AIL 2, for chemoselective detection of amine and alcohol gases on a quartz crystal microbalance (QCM). These detections of gaseous amines and alcohols were achieved by nucleophilic
Hsin-Yi Li, Yen-Ho Chu
doaj   +1 more source

Water‐Compatible SuFEx‐Active Diazonium Linchpin Platform for Rapid Modular Diversification and On‐DNA Functionalization

open access: yesAdvanced Functional Materials, EarlyView.
Sulfur fluoride exchange (SuFEx) is a powerful click platform, yet water‐compatible multifunctional linchpins remain elusive. Here, we report decagram‐scalable diazonium linchpins that enable rapid Pd‐catalyzed diversification and direct, catalyst‐free on‐DNA ligation in aqueous media.
Seok Ju Hong   +5 more
wiley   +1 more source

Synthesis of Polynitroxides Based on Nucleophilic Aromatic Substitution

open access: yes, 2016
The scope and limitations of the synthesis of polynitroxides by nucleophilic substitution of electron-deficient fluorinated aromatic compounds are described. The method provides a facile route to the formation of polynitroxides exhibiting strong electron
Olaf Zeika (1273029)   +6 more
core   +2 more sources

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