ChemInform Abstract: Nickel-Catalyzed C-3 Direct Arylation of Pyridinium Ions for the Synthesis of 1-Azafluorenes.

ChemInform ◽  
2016 ◽  
Vol 47 (49) ◽  
Author(s):  
Jean-Nicolas Desrosiers ◽  
et al.
Keyword(s):  
Direct Arylation ◽  
Pyridinium Ions

scholarly journals Nickel-catalyzed C-3 direct arylation of pyridinium ions for the synthesis of 1-azafluorenes

2016 ◽  
Vol 7 (8) ◽  
pp. 5581-5586 ◽  
Author(s):  
Jean-Nicolas Desrosiers ◽  
Xudong Wei ◽  
Osvaldo Gutierrez ◽  
Jolaine Savoie ◽  
Bo Qu ◽  
...  
Keyword(s):  
Precious Metal ◽  
Mechanistic Studies ◽  
Direct Arylation ◽  
Metal Catalyzed ◽  
Pyridinium Ions

The reactivity of pyridinium ions was utilized for the first non-precious-metal-catalyzed C-3 direct arylation and was demonstrated by mechanistic studies.

Evidence for general base catalysis by protic solvents in a kinetic study of alcoholyses and hydrolyses of 1-(phenoxycarbonyl)pyridinium ions under both solvolytic and non-solvolytic conditions

2009 ◽  
Vol 74 (1) ◽  
pp. 43-55 ◽  
Author(s):  
Dennis N. Kevill ◽  
Byoung-Chun Park ◽  
Jin Burm Kyong
Keyword(s):  
Second Order ◽  
Base Catalysis ◽  
Substitution Reactions ◽  
Third Order ◽  
Methoxy Derivative ◽  
First Order ◽  
General Base ◽  
Protic Solvents ◽  
Kinetics Of ◽  
Pyridinium Ions

The kinetics of nucleophilic substitution reactions of 1-(phenoxycarbonyl)pyridinium ions, prepared with the essentially non-nucleophilic/non-basic fluoroborate as the counterion, have been studied using up to 1.60 M methanol in acetonitrile as solvent and under solvolytic conditions in 2,2,2-trifluoroethan-1-ol (TFE) and its mixtures with water. Under the non- solvolytic conditions, the parent and three pyridine-ring-substituted derivatives were studied. Both second-order (first-order in methanol) and third-order (second-order in methanol) kinetic contributions were observed. In the solvolysis studies, since solvent ionizing power values were almost constant over the range of aqueous TFE studied, a Grunwald–Winstein equation treatment of the specific rates of solvolysis for the parent and the 4-methoxy derivative could be carried out in terms of variations in solvent nucleophilicity, and an appreciable sensitivity to changes in solvent nucleophilicity was found.

scholarly journals Copper-catalyzed Site-selective Direct Arylation of Triptycene

2020 ◽  
Vol 49 (6) ◽  
pp. 689-692
Author(s):  
Keisuke Ueno ◽  
Yuji Nishii ◽  
Masahiro Miura
Keyword(s):  
Direct Arylation ◽  
Site Selective

Influence of synthetic pathway, molecular weight and side chains on properties of indacenodithiophene-benzothiadiazole copolymers made by direct arylation polycondensation

2021 ◽  
Vol 9 (13) ◽  
pp. 4597-4606
Author(s):  
Desiree Adamczak ◽  
Andrea Perinot ◽  
Hartmut Komber ◽  
Anna Illy ◽  
Sandra Hultmark ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Side Chains ◽  
Direct Arylation ◽  
Synthetic Pathway ◽  
Direct Arylation Polycondensation

Poly(indacenodithiophene-alt-benzothiadiazole) with different side chains and molecular weight is made using two different pathways in which all C–C coupling steps are achieved by C–H activation, and the products are comprehensively investigated.

Direct Arylation Polycondensation towards Water/Alcohol-Soluble Conjugated Polymers as Electron Transporting Layers for Organic Solar Cells

2021 ◽  
Author(s):  
Kaiwen Lin ◽  
Qingwu Yin ◽  
Zhenfeng Wang ◽  
Boming Xie ◽  
Chunhui Duan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Organic Solar Cells ◽  
Direct Arylation ◽  
Direct Arylation Polycondensation ◽  
Water Alcohol

Two water/alcohol soluble conjugated polymers (WSCPs), based on naphthalenediimide and amino-functionalized 3,4-(propylenedioxy)thiophene were synthesized via direct arylation polycondensation (DArP). The polymers worked well as electron transporting layers (ETLs) for fullerene-based...

Cyclopentadithiophene-benzoic acid copolymers as conductive binders for silicon nanoparticles in anode electrodes of lithium ion batteries

2017 ◽  
Vol 53 (11) ◽  
pp. 1856-1859 ◽  
Author(s):  
Kuo-Lung Wang ◽  
Tzu-Husan Kuo ◽  
Chun-Feng Yao ◽  
Shu-Wei Chang ◽  
Yu-Shuo Yang ◽  
...  
Keyword(s):  
Benzoic Acid ◽  
Lithium Ion Batteries ◽  
Silicon Nanoparticles ◽  
Lithium Ion ◽  
Direct Arylation ◽  
Anode Electrode

Cyclopentadithiophene-benzoic acid copolymers have been synthesized by direct arylation followed by saponification for use as conductive binders for silicon nanoparticles in anode electrode of lithium ion batteries.

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