Results 51 to 60 of about 3,066,437 (179)
Molecules, 2020 Direct (hetero)arylation (DHA) is playing a key role in improving the efficiency and atom economy of C–C cross coupling reactions, so has impacts in pharmaceutical and materials chemistry.
Adiel Mauro Calascibetta +5 more
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Palladium-Catalyzed intramolecular direct arylation of aromatic tertiary amide compounds revisited
Results in Chemistry, 2022 We have investigated the palladium-catalyzed intramolecular direct arylation of three aromatic tertiary amide compounds. For the C–H activation of the benzene ring, heating over 120 °C in the presence of PCy3·HBF4 and PivOH was indispensable, and the ...
Koji Takagi +2 more
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Palladium-Catalyzed Direct Arylation of Selenophene [PDF]
Proceedings of the 15th Brazilian Meeting on Organic Synthesis Proceedings, 2013 An efficient and convenient method was developed for the regioselective formation of 2-aryl- or 2,5-diarylselenophenes via a palladium-catalyzed direct arylation. This protocol is suitable for a wide range of aryl halides containing different functional groups.
Daniel S, Rampon +2 more
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Aryl Bromides and Aryl Chlorides for the Direct Arylation of Benzylic Amines Mediated by Ruthenium(II) [PDF]
European Journal of Organic Chemistry, 2013 AbstractThe ruthenium(II)‐catalyzed sp3 C–H bond arylation of benzylic amines with aryl halides is reported. In the present method, aryl iodides and, more importantly, also the cheaper aryl bromides and aryl chlorides can be applied as aryl sources. Additionally, the method does not require elaborate manipulations in a glove box and can be carried out ...
Dastbaravardeh, Navid +2 more
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, 2009 Efficient rhodium(I)-catalyzed regioselective direct arylation and alkenylation of aromatic C-H bonds has been realized with aromatic carboxylic and cinnamic anhydrides as the coupling partners via decarbonylation and C-H activation under phosphine-free ...
Ye, Wenjing +5 more
core +1 more source
Copper-catalyzed CuAAC/intramolecular C–H arylation sequence: Synthesis of annulated 1,2,3-triazoles
Beilstein Journal of Organic Chemistry, 2012 Step-economical syntheses of annulated 1,2,3-triazoles were accomplished through copper-catalyzed intramolecular direct arylations in sustainable one-pot reactions.
Rajkumar Jeyachandran +2 more
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Arylation Reactions in the Synthesis of Biologically Important 2,5-Diaryl-1,3,4-Oxadiazoles
Applied Sciences, 2022 Apart from carbon atoms, some cyclic molecules contain other elements and play an extraordinary role in human life. Among these systems, 1,3,4-oxadiazole derivatives deserve special attention due to their biological properties such as antibacterial ...
Monika Olesiejuk, Agnieszka Kudelko
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Ruthenium-catalyzed direct arylations with aryl chlorides
RSC Advances, 2016 Aryl chlorides are readily available at lower cost than the corresponding bromides and iodides, but are much more challenging as substrates in metal-catalyzed cross-couplings.
Gao-Feng Zha +2 more
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, 2019 Palladium-catalyzed site-selective dearomative C2-arylation of 2,5-diaryl-1H-pyrroles with aryl chlorides was accomplished, and a series of 2,2,5-triaryl-2H-pyrroles were synthesized.
Sakiko Fujiwara +5 more
core +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
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