scholarly journals Oxidative Coupling of Aryl Boronic Acids with Aryl- and Alkylamines via Cooperative Photoredox and Copper Catalysis

2019 ◽  
Author(s):  
Jennifer Marshall ◽  
Juliana O'Brien ◽  
Andrew Wommack
Keyword(s):  
Oxidative Coupling ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Boronic Acids ◽  
Secondary Amines ◽  
Copper Catalysis ◽  
Ambient Atmosphere ◽  
Aerobic Conditions ◽  
Cross Coupling Reaction

<p>Copper(II)-catalyzed oxidative cross-couplings of aryl boronic acids with aryl- and alkylamines have been accomplished across a range of substrates in the presence of a ruthenium(II)-photoredox cocatalyst under mild aerobic conditions. This modified C−N cross-coupling reaction allows the incorporation of alkylamines to both electron poor− and electron-rich aryl boronic acids with low photocatalyst loadings and under ambient atmosphere. The coupling protocol provides secondary amines in yields of 63-90% during the safe, procedurally improved process. </p>

scholarly journals Oxidative Coupling of Aryl Boronic Acids with Aryl- and Alkylamines via Cooperative Photoredox and Copper Catalysis

2019 ◽  
Author(s):  
Jennifer Marshall ◽  
Juliana O'Brien ◽  
Andrew Wommack
Keyword(s):  
Oxidative Coupling ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Boronic Acids ◽  
Secondary Amines ◽  
Copper Catalysis ◽  
Ambient Atmosphere ◽  
Aerobic Conditions ◽  
Cross Coupling Reaction

<p>Copper(II)-catalyzed oxidative cross-couplings of aryl boronic acids with aryl- and alkylamines have been accomplished across a range of substrates in the presence of a ruthenium(II)-photoredox cocatalyst under mild aerobic conditions. This modified C−N cross-coupling reaction allows the incorporation of alkylamines to both electron poor− and electron-rich aryl boronic acids with low photocatalyst loadings and under ambient atmosphere. The coupling protocol provides secondary amines in yields of 63-90% during the safe, procedurally improved process. </p>

scholarly journals Efficient in situ N-heterocyclic carbene palladium(ii) generated from Pd(OAc)2 catalysts for carbonylative Suzuki coupling reactions of arylboronic acids with 2-bromopyridine under inert conditions leading to unsymmetrical arylpyridine ketones: synthesis, characterization and cytotoxic activities

RSC Advances ◽  
2018 ◽  
Vol 8 (70) ◽  
pp. 40000-40015 ◽  
Author(s):  
Nedra Touj ◽  
Abdullah S. Al-Ayed ◽  
Mathieu Sauthier ◽  
Lamjed Mansour ◽  
Abdel Halim Harrath ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Suzuki Coupling ◽  
Boronic Acids ◽  
Cytotoxic Activities ◽  
Coupling Reactions ◽  
Component System ◽  
Arylboronic Acids ◽  
Cross Coupling Reaction

The in situ prepared four component system Pd(OAc)2, 1,3-dialkylbenzimidazolium halides 2a–i and 4a–i, K2CO3 under CO atmosphere catalyses carbonylative cross-coupling reaction of 2-bromopyridine with various boronic acids to yield unsymmetrical arylpyridine ketones.

scholarly journals Synthesis of 4-Alkyl-4H-1,2,4-triazole Derivatives by Suzuki Cross-coupling Reactions and Their Luminescence Properties

Molecules ◽  
2019 ◽  
Vol 24 (3) ◽  
pp. 652 ◽  
Author(s):  
Monika Olesiejuk ◽  
Agnieszka Kudelko ◽  
Marcin Swiatkowski ◽  
Rafal Kruszynski
Keyword(s):  
Ionic Liquids ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Boronic Acids ◽  
Luminescence Properties ◽  
Coupling Reactions ◽  
Triazole Derivatives ◽  
Cross Coupling Reactions ◽  
Cross Coupling Reaction ◽  
Derivatives Of

New derivatives of 4-alkyl-3,5-diaryl-4H-1,2,4-triazole were synthesized utilizing the Suzuki cross-coupling reaction. The presented methodology comprises of the preparation of bromine-containing 4-alkyl-4H-1,2,4-triazoles and their coupling with different commercially available boronic acids in the presence of ionic liquids or in conventional solvents. The obtained compounds were tested for their luminescence properties.

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