Articles with "direct arylation" as a keyword



Thickness‐Tolerant A1–A2 Polyelectrolyte Cathode Interlayers via Direct Arylation Polycondensation for 20.5% Efficiency Organic Solar Cells

Sign Up to like & get
recommendations!
Published in 2025 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202516196

Abstract: Efficient electron transport and extraction at the cathode interface are vital for achieving high‐performance organic solar cells (OSCs). Herein, a sustainable synthesis of novel A1–A2 type polyelectrolyte cathode interfacial materials (CIMs), PNIBI‐NDIN and PNIBI‐NDINBr, via… read more here.

Keywords: direct arylation; solar cells; cathode; polyelectrolyte cathode ... See more keywords

Basicity‐Controlled Reactivity of meta‐OTf‐Substituted Diaryliodonium Salts for Direct Arylation or Diels‐Alder Cycloaddition of Pyrrole Derivatives

Sign Up to like & get
recommendations!
Published in 2024 at "Asian Journal of Organic Chemistry"

DOI: 10.1002/ajoc.202400139

Abstract: In this study, we explored the reactivity of meta‐trifluoromethanesulfonate (OTf) substituted diaryliodonium salts under alkaline conditions. Two distinct pathways with direct arylation of pyrrole derivatives and Diels‐Alder cycloaddition via aryne intermediates, have been found upon… read more here.

Keywords: reactivity meta; otf substituted; direct arylation; substituted diaryliodonium ... See more keywords

Direct C3‐Arylation of 2 H‐Indazole Derivatives with Aryl Bromides by using Low Loading of a Phosphine‐free Palladium Catalyst

Sign Up to like & get
recommendations!
Published in 2017 at "ChemCatChem"

DOI: 10.1002/cctc.201601420

Abstract: The palladium‐catalyzed direct arylation of 2 H‐indazoles with aryl bromides for the preparation of 3‐aryl‐2 H‐indazoles was found to proceed in high yields when using only 0.5–0.1 mol % Pd(OAc)2 catalyst and KOAc as inexpensive base. A wide variety… read more here.

Keywords: direct arylation; aryl bromides; electron; palladium ... See more keywords

Direct Arylation Polycondensation (DAP) Synthesis of Alternating Quaterthiophene-Benzothiadiazole Copolymers for Organic Solar Cell Applications.

Sign Up to like & get
recommendations!
Published in 2019 at "ChemPlusChem"

DOI: 10.1002/cplu.201900260

Abstract: Poly[(2,1,3-benzothiadiazole-4,7-diyl)-alt-4',3''-difluoro-3,3'''-di(2-octyldodecyl)-2,2';5',2'';5'',2'''-quaterthiophene-5,5'''-diyl)] (PBTff4T-2OD) and poly[(5,6-difluoro-2,1,3-benzothiadiazol-4,7-diyl)-alt-3,3'''-di(2-octyldodecyl)-2,2';5',2'';5'',2'''-quaterthiophene-5,5'''-diyl)] (PffBT4T-2OD) for use as the p-donor component of high-efficiency fullerene-based organic solar cells are usually synthesized in established C-C cross-coupling reactions, preferably using the Stille procedure. This report describes how PBTff4T-2OD… read more here.

Keywords: diyl; dap; direct arylation; arylation polycondensation ... See more keywords
Photo from academic.microsoft.com

Chemoselective Palladium‐Catalyzed Direct C–H Arylation of 5‐Carboxyimidazoles: Unparalleled Access to Fused Imidazole‐Based Tricycles Containing Six‐, Seven‐ or Eight‐Membered Rings

Sign Up to like & get
recommendations!
Published in 2017 at "European Journal of Organic Chemistry"

DOI: 10.1002/ejoc.201700297

Abstract: An extensive study of the chemoselective Pd-catalyzed inter- and intramolecular direct C–H arylation of N-benzylated 5-carboxyimidazoles with halides with and without CuI assistance in 1,4-dioxane as a low-polarity solvent was explored. The method was suitable… read more here.

Keywords: direct arylation; membered rings; fused imidazole; eight membered ... See more keywords

A Defect-Free Naphthalene Diimide Bithiazole Copolymer via Regioselective Direct Arylation Polycondensation

Sign Up to like & get
recommendations!
Published in 2018 at "European Journal of Organic Chemistry"

DOI: 10.1002/ejoc.201800821

Abstract: An optimized direct arylation polycondensation (DAP) protocol for the synthesis of a novel naphthalene diimide (NDI) 2,2'-bithiazole (2-BTz) copolymer (PNDI-2-BTz) is presented. The regioselective C-H activation of 2-BTz at the 5-positions allows for the synthesis… read more here.

Keywords: direct arylation; arylation polycondensation; naphthalene diimide; btz ... See more keywords

Direct Arylation of Benzoxazoles with Benzoyl Chlorides under Mild Conditions

Sign Up to like & get
recommendations!
Published in 2024 at "European Journal of Organic Chemistry"

DOI: 10.1002/ejoc.202400303

Abstract: A mild and convenient method for the arylation of benzoxazoles with benzoyl chlorides was achieved. This facile protocol used only N,N‐Diisopropylethylamine (DIPEA) as an additive. Under the optimal reaction conditions, a wide range of benzoxazoles and benzoyl chlorides were tolerated. With… read more here.

Keywords: arylation benzoxazoles; direct arylation; benzoyl chlorides; benzoxazoles benzoyl ... See more keywords

Synthesis of Conjugated Polymers with Controlled Terminal Structures by Direct Arylation Polycondensation and Correlation Between Terminal Structures and Emission Properties

Sign Up to like & get
recommendations!
Published in 2025 at "Macromolecular Chemistry and Physics"

DOI: 10.1002/macp.202400506

Abstract: Conjugated polymers are promising semiconducting materials for applications in organic electronic devices such as organic light‐emitting diodes (OLEDs). Recent advances in direct arylation polycondensation have enabled the synthesis of defect‐free polymers in the main chain;… read more here.

Keywords: conjugated polymers; terminal structures; direct arylation; polymers controlled ... See more keywords

Over 7% photovoltaic efficiency of a semicrystalline donor-acceptor polymer synthesized via direct arylation polymerization

Sign Up to like & get
recommendations!
Published in 2018 at "Dyes and Pigments"

DOI: 10.1016/j.dyepig.2018.05.036

Abstract: Abstract Direct arylation polymerization enables “greener” synthesis of a high-performance semicrystalline π-conjugated polymer, poly[(2,5-bis(2-hexyldecyloxy)phenylene)-alt-(5,6-difluoro-4,7-di(thiophene-2-yl)benzo[c][1,2,5]thiadiazole) (PPDT2FBT). The resulting polymers show a hole mobility of 4.7 × 10−3 cm2 V−1 s−1 in bottom-gate/top-contact field effect transistors, and a power conversion efficiency over… read more here.

Keywords: direct arylation; semicrystalline; arylation polymerization; polymer ... See more keywords

New 4-vinylbenzyl-substituted bis(NHC)-Pd(II) complexes: Synthesis, characterization and the catalytic activity in the direct arylation reaction

Sign Up to like & get
recommendations!
Published in 2018 at "Inorganica Chimica Acta"

DOI: 10.1016/j.ica.2017.12.019

Abstract: Abstract This study contains the synthesis of the new 4-vinylbenzyl substituted bis(NHC)-Pd(II) complexes and their catalytic activity in direct arylation reaction. The bis(NHC)-Pd(II) complexes have been prepared from Ag(I)NHC complexes by transmetallation method. The complexes… read more here.

Keywords: direct arylation; bis nhc; arylation reaction; nhc complexes ... See more keywords

The direct C4-arylation of 3,5-dimethylisoxazole with aryl bromides catalyzed by imidazolidin-2-ylidene based palladium-PEPPSI complexes

Sign Up to like & get
recommendations!
Published in 2020 at "Inorganica Chimica Acta"

DOI: 10.1016/j.ica.2020.119454

Abstract: Abstract In this study, the synthesis and characterization of four new imidazolinium salts as carbene precursors and their corresponding four new PEPPSI-type (PEPPSI = Pyridine Enhanced Precatalyst Preparation Stabilization and Initiation) palladium complexes were reported. The structures… read more here.

Keywords: direct arylation; peppsi; aryl bromides; arylation dimethylisoxazole ... See more keywords