Results 61 to 70 of about 3,066,437 (179)

Direct catalytic arylation of heteroarenes with meso-bromophenyl-substituted porphyrins

Beilstein Journal of Organic Chemistry, 2017
The arylation of mono-, di- and tetra-meso-bromophenyl-substituted porphyrins with the heteroarenes containing “acidic” C–H bonds, such as benzoxazole, benzothiazole and N-methylimidazole was studied in the presence of three alternative catalytic systems:
Alexei N. Kiselev, Olga K. Grigorova, Alexei D. Averin, Sergei A. Syrbu, Oskar I. Koifman, Irina P. Beletskaya   +5 more
doaj   +1 more source

Palladium-catalysed direct arylation of sydnones

, 2009
Conditions for the palladium-catalysed direct arylation of sydnones with aryl iodides and bromides are ...
Rodriguez, Arantxa, Moran, Wesley J.
core   +1 more source

Synthesis of β-arylated alkylamides via Pd-catalyzed one-pot installation of a directing group and C(sp3)–H arylation

Beilstein Journal of Organic Chemistry, 2016
The synthesis of β-arylated alkylamides via alkyl C–H bond arylation has been realized by means of direct one-pot reactions of acyl chlorides, aryl iodides and 8-aminoquinoline. Depending on the structure of the starting materials, both single and double
Yunyun Liu, Yi Zhang, Xiaoji Cao, Jie-Ping Wan   +3 more
doaj   +1 more source

Structural Features Defining NF-κB Inhibition by Lignan-Inspired Benzofurans and Benzothiophenes

Biomolecules, 2020
A series of 2-arylbenzofurans and 2-arylbenzothiophenes was synthesized carrying three different side chains in position five. The synthesized compounds were tested for NF-κB inhibition to establish a structure activity relationship.
Toan Dao-Huy, Simone Latkolik, Julia Bräuer, Andreas Pfeil, Hermann Stuppner, Michael Schnürch, Verena M. Dirsch, Marko D. Mihovilovic   +7 more
doaj   +1 more source

Practical iridium-catalyzed direct α-arylation of N-heteroarenes with (hetero)arylboronic acids by H2O-mediated H2 evolution

Nature Communications, 2021
2-(hetero)aryl N-heteroarenes are ubiquitously applied in numerous fields of science and useful for the development of bioactive molecules and drugs, but there is a lack of general methods for their synthesis.
Liang Cao, He Zhao, Rongqing Guan, Huanfeng Jiang, Pierre. H. Dixneuf, Min Zhang   +5 more
doaj   +1 more source

Palladium-Catalyzed Arylations towards 3,6-Diaryl-1,3a,6a-triazapentalenes and Evaluation of Their Fluorescence Properties

Molecules
Methyl 4-(1,3a,6a-triazapentalen-3-yl)benzoate (TAP1) shows interesting properties as a small molecule fluorophore. In the search for post-functionalization methods, palladium-catalyzed arylation reactions were demonstrated. Direct CH arylation reactions
Yingchun Wang, Tomas Opsomer, Flip de Jong, Davy Verhaeghe, Maarten Mulier, Luc Van Meervelt, Mark Van der Auweraer, Wim Dehaen   +7 more
doaj   +1 more source

Cu-Catalyzed Direct C6-Arylation of Indoles

, 2016
The first example of direct and site-selective arylation of indoles at the C6 position has been reported. The key to this high regioselectivity is the appropriate choice of the N–P­(O)tBu2 directing group and the use of diaryliodonium triflate salts as ...
Yue Zhao (186573), Ruirui Li (1573267), Zhuangzhi Shi (1429201), Youqing Yang (1429198), Dongbing Zhao (838477)   +4 more
core   +2 more sources

Mono or double Pd-catalyzed C–H bond functionalization for the annulative π-extension of 1,8-dibromonaphthalene: a one pot access to fluoranthene derivatives

Beilstein Journal of Organic Chemistry
The Pd-catalyzed annulative π-extension of 1,8-dibromonaphthalene for the preparation of fluoranthenes in a single operation has been investigated. With specific arenes such as fluorobenzenes, the Pd-catalyzed double functionalization of C–H bonds yields
Nahed Ketata, Linhao Liu, Ridha Ben Salem, Henri Doucet   +3 more
doaj   +1 more source

SÍNTESE DE DERIVADOS DE FENANTRIDINONAS POR ARILAÇÃO DIRETA. CARACTERIZAÇÃO DOS ESPECTROS DE ABSORÇÃO E EMISSÃO DE EXEMPLOS REPRESENTATIVOS

Química Nova, 2016
The phenanthridinone heterocyclic system has attracted considerable attention in recent years due to the diverse array of physical, chemical and pharmacological properties demonstrated by natural and synthetic derivatives. As a consequence there has been
Roberta L. da Costa, Douglas A. F. da Silva, Nanci C. de Lucas, Simon J. Garden   +3 more
doaj   +1 more source

Hydrodehalogenation of Aryl Halides through Direct Electrolysis [PDF]

Chemistry – A European Journal, 2019
AbstractA catalyst‐ and metal‐free electrochemical hydrodehalogenation of aryl halides is disclosed. Our reaction by a flexible protocol is operated in an undivided cell equipped with an inexpensive graphite rod anode and cathode. Trialkylamines nBu3N/Et3N behave as effective reductants and hydrogen atom donors for this electrochemical reductive ...
Jie Ke, Hongling Wang, Liejin Zhou, Chengli Mou, Jingjie Zhang, Lutai Pan, Yonggui Robin Chi   +6 more
openaire   +4 more sources