Results 21 to 30 of about 3,066,437 (179)

Direct Arylation Polymerization of Degradable Imine-based Conjugated Polymers [PDF]

open access: yes, 2023
The development and optimization of reliable polymerization methods are needed for the synthesis of degradable imine-based conjugated polymers, which are attractive materials for transient electronics.
Angela , Lin   +4 more
core   +2 more sources

Photoredox α-Arylation of cyclic ketones [PDF]

open access: yes, 2022
The direct α-arylation of unactivated carbonyl compounds using aryl halides represents a powerful method to synthesize criti-cal building blocks for diverse useful compounds.
Jules, Moutet   +3 more
core   +2 more sources

Direct arylation reaction of heteroarenes mediated by photoinduced electron transfer

open access: yesJournal of Photochemistry and Photobiology, 2023
Electron donor–acceptor (EDA) complexes are interesting chemical species that function as molecular complexes. In this context, chemists have actively studies the use of halogen bonding as a noncovalent interaction in photochemistry.
Eiji Yamaguchi, Oe Karin, Akichika Itoh
doaj   +1 more source

Gold-Catalyzed Direct Arylation [PDF]

open access: yesScience, 2012
Gently Coupled Linked aryl rings are found in a broad range of commercial chemical products. Currently, the most versatile synthetic route to this motif involves cross-coupling of one ring with a halide substituent to another ring with a boron or metal-based substituent. Recent research has focused on eliminating the need for one
Ball, Liam T   +2 more
openaire   +3 more sources

Methoxy-Directed Aryl-to-Aryl 1,3-Rhodium Migration [PDF]

open access: yesJournal of the American Chemical Society, 2013
Through-space metal/hydrogen shift is an important strategy for transition-metal-catalyzed C-H bond activation. Here we describe the synthesis and characterization of a Rh(I) 2,6-dimethoxybenzoate complex that underwent stoichiometric rearrangement via a highly unusual 1,3-rhodium migration.
Jing, Zhang   +5 more
openaire   +2 more sources

Highly Regioselective Direct C-H Arylation: Facile Construction of Symmetrical Dithienophthalimide-Based π-Conjugated Molecules for Optoelectronics

open access: yesResearch, 2020
Controllable direct C-H arylation with high regioselectivity is highly desirable yet remains a formidable challenge. Herein, a facile regioselective direct C-H arylation is developed for efficient construction of a variety of symmetrical ...
Xiang-Chun Li   +8 more
doaj   +1 more source

Synthesis of Novel 3,6-Dithienyl Diketopyrrolopyrrole Dyes by Direct C-H Arylation

open access: yesMolecules, 2020
Direct C-H arylation coupling is potentially a more economical and sustainable process than conventional cross-coupling. However, this method has found limited application in the synthesis of organic dyes for dye-sensitized solar cells. Although direct C-
Amsalu Efrem Yemene   +4 more
doaj   +1 more source

Challenging Atroposelective C–H Arylation

open access: yesSynOpen, 2020
Atropisomeric molecules are privileged scaffolds, not only as ligands for asymmetric synthesis, but also as biologically active products and advanced materials.
Joanna Wencel-Delord   +1 more
doaj   +1 more source

Ligandless Palladium-Catalyzed Direct C-5 Arylation of Azoles Promoted by Benzoic Acid in Anisole

open access: yesMolecules, 2022
The palladium-catalyzed direct arylation of azoles with (hetero)aryl halides is nowadays one of the most versatile and efficient procedures for the selective synthesis of heterobiaryls.
Elisabetta Rosadoni   +5 more
doaj   +1 more source

Biodegradable Polyimidazole Particles as Contrast Agents produced by Direct Arylation Polymerization [PDF]

open access: yes, 2021
Conjugated polymer particles provide an important platform for the development of theranostic nanoagents. However, the number of biocompatible and foremost biodegradable π-conjugated polymers is limited. Imidazole is a π-conjugated motif that is abundant
Felicitas , Jansen   +4 more
core   +2 more sources

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