Synthesis of Symmetrical and Unsymmetrical 1,3-Diheteroarylbenzenes Through Palladium-Catalyzed Direct Arylation of Benzene-1,3-disulfonyl Dichloride and 3-Bromobenzenesulfonyl Chlorides [PDF]
, 2015 International audienceThe palladium-catalyzed synthesis of unsymmetrical 1,3-diheteroarylbenzenes was investigated. The first synthetic pathway relies on the desymmetrization of benzene-1,3-disulfonyl dichloride through two successive palladium-catalyzed
Derridj, Fazia +4 more
core +2 more sources
ChemistryOpen, Volume 15, Issue 4, April 2026.Palladium is a simple and versatile redox‐active metal that plays a crucial role in the oxidation reactions for organic synthesis and production of pharmaceutical intermediates. Notably, there has been significant progress with Lewis acids (LAs), which are non‐redox metal ions promoting Pd(II)‐catalyzed oxidation via C—H and C—C bond activation.
Ahmed M. Senan +3 more
wiley +1 more source
Chromium(II)-catalyzed enantioselective arylation of ketones
Beilstein Journal of Organic Chemistry, 2016 The chromium-catalyzed enantioselective addition of carbo halides to carbonyl compounds is an important transformation in organic synthesis. However, the corresponding catalytic enantioselective arylation of ketones has not been reported to date. Herein,
Gang Wang +4 more
doaj +1 more source
Push-pull bithiophene azo-chromophores bearing thiazole and benzothiazole acceptor moieties: synthesis and evaluation of their redox and nonlinear optical properties [PDF]
, 2011 Three series of bithiophene azo dyes functionalized with thiazol-2-yl or benzothiazol-2-yl-diazene acceptor moieties were synthesized through azo coupling reaction using 2,2´-bithiophene, 5-alkoxy-2,2´-bithiophenes, 5-N,N-dialkylamino-2,2´-bithiophenes ...
Belsley, M. +3 more
core +1 more source
Ligand-Controlled Asymmetric Arylation of Aliphatic α-Amino Anion Equivalents [PDF]
, 2014 A palladium-catalyzed asymmetric arylation of 9-aminofluorene-derived imines using a chiral dialkylbiaryl phosphine as the supporting ligand has been developed.
Buchwald, Stephen Leffler, Zhu, Ye
core +5 more sources
An easy direct arylation of 5-pyrazolones
Beilstein Journal of Organic Chemistry, 2013 A mild, efficient and catalytic ligand-free method for the direct arylation of 5-pyrazolones by Pd-catalyzed C–H bond activation is reported. The process smoothly proceeds and yields are moderate to excellent.
Hao Gong +3 more
doaj +1 more source
Enantioselective and Regiodivergent Copper-Catalyzed Electrophilic Arylation of Allylic Amides with Diaryliodonium Salts. [PDF]
, 2015 A catalytic enantioselective and regiodivergent arylation of alkenes is described. Chiral copper(II)bisoxazoline complexes catalyze the addition of diaryliodonium salts to allylic amides in excellent ee.
Cahard, Elise +3 more
core +4 more sources
Metal-free formal synthesis of phenoxazine
Beilstein Journal of Organic Chemistry, 2018 A transition metal-free formal synthesis of phenoxazine is presented. The key step of the sequence is a high-yielding O-arylation of a phenol with an unsymmetrical diaryliodonium salt to provide an ortho-disubstituted diaryl ether.
Gabriella Kervefors +3 more
doaj +1 more source
Nucleophilic Arylation of Halopurines Facilitated by Brønsted Acid in Fluoroalcohol
Molecules, 2019 Various aryl-substituted purine derivatives were synthesized through the direct arylation of halopurines with aromatic compounds, facilitated by the combination of triflic acid and fluoroalcohol.
Naoko Takenaga +7 more
doaj +1 more source
Peripherally-metallated porphyrins: meso-n1-porphyrinyl-platinum(II) complexes of 5,15-diaryl- and 5,10,15-triarylporphyrins [PDF]
, 2002 Attempted metathesis reactions of peripherally-metallated meso-η1-porphyrinylplatinum(II) complexes such as trans-[PtBr(NiDPP)(PPh3)2] (H2DPP = 5,15-diphenylporphyrin) with organolithium reagents fail due to competitive addition at the porphyrin ring ...
Arnold, Dennis +2 more
core +2 more sources