Results 121 to 130 of about 597,754 (265)
9,10-Dioxa-1,2-diaza-anthracene derivatives from tetrafluoropyridazine
Beilstein Journal of Organic Chemistry, 2010 Reaction of tetrafluoropyridazine with catechol gives a tricyclic 9,10-dioxa-1,2-diaza-anthracene system by a sequential nucleophilic aromatic substitution ring annelation process, further extending the use of perfluoroheteroaromatic derivatives for the ...
Graham Pattison +5 more
doaj +1 more source
Angewandte Chemie, EarlyView.Modular access to underexplored C5‐sulfenyl thiazoles via an intermolecular Pummerer rearrangement is reported. The methodology exhibits a broad functional group tolerance enabling the seamless design of trisubstituted thiazole cores bearing a sulfur handle for further elaboration.
Joe L. Smy +5 more
wiley +2 more sources
Rational design of a "dual lock-and-key" supramolecular photosensitizer based on aromatic nucleophilic substitution for specific and enhanced photodynamic therapy. [PDF]
Chem Sci, 2020 Teng KX, Niu LY, Kang YF, Yang QZ.
europepmc +1 more source
Angewandte Chemie, EarlyView.Rapid self‐discharge limits the practical deployment of Zn–Br2 batteries. Herein, a gemini ionic liquid featuring dual bromine‐binding sites and an aromatic linker is confined within porous carbon electrodes. The ionic liquid simultaneously complexes bromine species and interacts strongly with the carbon matrix, enabling efficient bromine retention ...
Vishwakarma Ravikumar Ramlal +10 more
wiley +2 more sources
Remapping the Synthetic Landscape of α‐Tertiary Alkylamines via Dual‐Functional Catechol
Angewandte Chemie, EarlyView.A three‐component assembly strategy has been developed for the modular synthesis of hindered α‐tertiary aliphatic amines from readily available precursors through unlocking the dual role of catechol. The practicality of this methodology has been demonstrated in over 90 examples, including compounds that are otherwise difficult to access, along with ...
Chen‐Yan Cai, Yuzuru Kanda, Tian Qin
wiley +2 more sources
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 +5 more
wiley +2 more sources
A mechanistic continuum of nucleophilic aromatic substitution reactions with azole nucleophiles
Chemical ScienceNucleophilic aromatic substitution reactions between indoles and aryl fluorides proceed by a general-base-catalyzed borderline mechanism and appear to lie on a mechanistic continuum.
Harrison W. Toll +8 more
openaire +2 more sources
Angewandte Chemie, EarlyView.A metal‐ and oxidant‐free electrochemical multicomponent di‐functionalization strategy that rapidly converts 1,1‐disubstituted alkenes into α‐tertiary primary amines with simultaneous installation of bio‐relevant sulfur or selenium motifs was devised for late‐stage functionalization. ABSTRACT Quaternary carbon centers, especially those bearing nitrogen,
Adrija Ghosh +4 more
wiley +2 more sources
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) +4 more
core +1 more source
Angewandte Chemie, EarlyView.Two novel bonded BN‐doped polycyclic hydrocarbons BN‐Dira and BN‐Tetra with open‐shell character were rationally designed and synthesized. Their molecular structures were unambiguously confirmed by crystallographic analysis. Facilitated by their intense absorption in the NIR region, high PCE (83.6%) and good photothermal stability, BN‐Dira and BN‐Tetra
Peiyun Zeng +7 more
wiley +2 more sources