Results 71 to 80 of about 22,861 (258)

A Dual Catalytic Platform for Enabling sp3 α C–H Arylation & Alkylation of Benzamides [PDF]

open access: yes, 2019
A dual catalytic sp3 a C–H arylation & alkylation of benzamides with organic halides is described. This protocol exhibits excellent chemoselectivity and exquisite site-selectivity, offering a complementary reactivity mode to existing sp3 arylation or ...
Jessica, Giacoboni   +5 more
core   +2 more sources

Regioselective Arylation of 1,3-Dimethyllumazine and Its 5-Oxide by Diazonium Salts

open access: yesPteridines, 1997
A new method to introduce an aryl group directly into the pteridine nucleus by the action of arene diazonium salt in an aqueous alkaline solution is described. 1,3-Dimethyllumazine and benzene diazonium chloride reacts in an aqueous solution at pH 8-9 to
Sugimoto Takashi   +3 more
doaj   +1 more source

Chemoselective cascade arylation [PDF]

open access: yes, 2022
Diaryliodonium salts are versatile arylating agents but generally feature poor atom economy. In this issue of Chem, Olofsson and co-workers describe a novel chemoselective SNAr reaction that sets up a second in situ arylation and incorporates the ...
Greaney, Michael F.   +3 more
core   +1 more source

Advances in α-Arylation of Carbonyl Compounds: Diaryliodonium Salts as Arylating Agents

open access: yesMolecules
Diaryliodonium salts are an important part of hypervalent iodine chemistry, owing to their highly electrophilic character, non-toxicity, and air and moisture stability, have been identified as an important arylating agent.
Xiao-Wei Chen   +5 more
doaj   +1 more source

Kinetic Resolution of Sulfur-Stereogenic Sulfoximines by Pd(II)-MPAA Catalyzed C-H Arylation and Olefination [PDF]

open access: yes, 2021
A direct Pd(II)-catalyzed kinetic resolution of heteroaryl-enabled sulfoximines through an ortho-C-H alkenylation/arylation of arenes has been developed for the first time.
Vincent , Gandon   +6 more
core   +1 more source

Deaminative vinylation and arylation cross-coupling reactions

open access: yes, 2023
Watson, Mary P.This thesis focuses on nickel-catalyzed vinylation and arylation cross-coupling reactions via C-N bond activation. Chapter 1 describes a vinylation method that was inspired by an analogous alkylation.
Lucas Baca, Diana
core   +1 more source

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

Aryl Diazonium Salts: Powerful Arylating Agents for Catellani-Type ortho-Arylation

open access: yes
The Catellani reaction provides an efficient synthetic approach to polyfunctionalized arenes. However, the selective ortho-arylating reagents employed in these reactions have been strictly limited to activated bromoarenes.
Yu-Xia Zhang (75820)   +2 more
core   +2 more sources

Benzyne arylation of oxathiane glycosyl donors

open access: yesBeilstein Journal of Organic Chemistry, 2010
The arylation of bicyclic oxathiane glycosyl donors has been achieved using benzyne generated in situ from 1-aminobenzotriazole (1-ABT) and lead tetraacetate.
Martin A. Fascione, W. Bruce Turnbull
doaj   +1 more source

Phosphine-Free Palladium-Catalyzed Direct C-3 Arylation of 2-Phenylimidazo[1,2-a]pyridine Using Silver(I) Carboxylate

open access: yesJournal of Chemistry, 2013
Phosphine-free palladium-catalyzed direct arylation of 2-phenyl-imidazo[1,2-a]pyridine has been developed with the concept of using silver(I) carboxylate.
Sridevi Kona   +3 more
doaj   +1 more source

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