Results 91 to 100 of about 3,271,959 (246)

Hypervalent Iodine Phenol Dearomatization Mediated by Mechanochemistry

Chemistry – A European Journal, EarlyView.
A solvent‐free mechanochemical process has been developed that enables the rapid oxidative dearomatization of phenols. This method produces spiranic dienones with decent to good yields. This process eliminates the need for expensive and environmentally harmful perfluorinated alcohols, such as hexafluoroisopropanol and trifluoroethanol, while adhering ...
Jérémie Cuillerier, Camille Rocq, Xavier Ottenwaelder, Sylvain Canesi   +3 more
wiley   +1 more source

Performance Comparisons of Polymer Semiconductors Synthesized by Direct (Hetero)Arylation Polymerization (DHAP) and Conventional Methods for Organic Thin Film Transistors and Organic Photovoltaics

Molecules, 2018
C-C bond forming reactions are central to the construction of π-conjugated polymers. Classical C-C bond forming reactions such as the Stille and Suzuki coupling reactions have been widely used in the past for this purpose.
Arthur D. Hendsbee, Yuning Li
doaj   +1 more source

Direct α-C(sp³)─H Alkylation and Arylation of Ethers Enabled by Carbon Nitride/Nickel Metallaphotoredox Catalysis. [PDF]

ChemSusChem
A recyclable carbon nitride/nickel metallaphotoredox platform enables direct α‐C(sp3)─H arylation and alkylation of ethers, amides, and benzylic substrates under visible light. Broad substrate scope, late‐stage functionalization, five‐cycle photocatalyst reuse, and continuous‐flow translation are demonstrated, while mechanistic studies support ...
de Vries Ibáñez MM, Husy NGG, Inico E, Karaca K, Vigliengo M, Olivati A, Petrozza A, Cavallotti C, Vilé G.   +8 more
europepmc   +2 more sources

Scale‐down before you scale‐up: Organic electronic materials scaled at Xerox Research Centre of Canada

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Organic electronics have emerged as a key class of functional materials for organic light‐emitting diodes (OLEDs), organic photovoltaics (OPVs), organic field‐effect transistors (OFETs), sensors, and printed electronics. However, commercialization remains dependent on the ability to reproducibly synthesize and manufacture high‐performance ...
Marko D. Saban, Benoît H. Lessard
wiley   +1 more source

Palladium-Catalyzed β-C(sp³)–H Bond Arylation of Tertiary Aldehydes Facilitated by 2-Pyridone Ligands

Molecules
2-Pyridone ligand-facilitated palladium-catalyzed direct C–H bond functionalization via the transient directing group strategy has become an attractive topic.
Ziting Xu, Zhi Li, Chong Liu, Ke Yang, Haibo Ge   +4 more
doaj   +1 more source

Extending the utility of [Pd(NHC)(cinnamyl)Cl] precatalysts: Direct arylation of heterocycles

Beilstein Journal of Organic Chemistry, 2012
The use of [Pd(NHC)(cinnamyl)Cl] precatalysts in the direct arylation of heterocycles has been investigated. Among four different precatalysts, [Pd(SIPr)(cinnamyl)Cl] proved to be the most efficient promoter of the reaction.
Anthony R. Martin, Anthony Chartoire, Alexandra M. Z. Slawin, Steven P. Nolan   +3 more
doaj   +1 more source

Rh(I)-Catalyzed Direct Arylation of Azines

, 2016
The Rh(I)-catalyzed direct arylation of azines has been developed. Quinolines and 2-substituted pyridines couple with aryl bromides to efficiently afford ortho-arylated azine products using the commercially available and air-stable catalyst [RhCl(CO)2]2.
Robert G. Bergman (1323120), Jonathan A. Ellman (610362), Ashley M. Berman (2250124)   +2 more
core   +1 more source

Remote Migratory Reductive Arylation of Unactivated Alkenes Enabled by Electrochemical Nickel Catalysis

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
we have developed an electrochemical Ni−H catalyzed arylation coupling method of unactivated alkenes with aryl halides. The method displays broad functional group tolerance and proceeds under very mild conditions. Furthermore, aryl chlorides were also compatible substrates in this catalytic system. This conversion holds significant implications for the
Chao Xu, Ru‐Han A, Xiao‐Feng Wu
wiley   +1 more source

Regioselective copper-catalyzed direct arylation of benzodithiophene-S,S-tetraoxide

, 2017
An efficient copper-catalyzed direct arylation reaction for the regioselective functionalization of benzodithiophene-S,S-tetraoxide has been developed.
A. L. Rheingold, K. A. N. Sachinthani, D. P. Khambhati, T. L. Nelson   +3 more
core   +1 more source

Ullmann‐Type N‐Heteroarylation of Nitrogen Heterocycles Catalyzed by Heterogeneous CuNPs/HKUST‐1

EcoEnergy, EarlyView.
A practical strategy for the direct synthesis of CuNPs/HKUST‐1 heterogeneous catalyst was developed and used for the catalyzing Ullmann‐type N‐arylation of N‐heterocycles with high yields, excellent recyclability, and low copper leaching. ABSTRACT Ullmann‐type C–N coupling is an essential reaction to construct functional nitrogen heterocycles, whereas ...
Shuai Yang, Fangshu Han, Yamin Dong, Liangting Wu, Wenchao Tang, Changyan Guo, Jide Wang, Ablimit Abdukader, Chenjiang Liu, Yonghong Zhang   +9 more
wiley   +1 more source