directing group
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2022 ◽  
Author(s):  
Hongyu Wang ◽  
Chen-Fei Liu ◽  
Robert T. Martin ◽  
Osvaldo Gutierrez ◽  
Ming Joo Koh
Keyword(s):  

Synlett ◽  
2022 ◽  
Author(s):  
Jean-François Soulé ◽  
Zhuan Zhang ◽  
Natacha Durand

AbstractTrivalent-phosphorus-containing molecules are widely used in fields ranging from catalysis to materials science. Efficient catalytic methods for their modifications, providing straightforward access to novel hybrid structures with superior catalytic activities, are highly desired to facilitate reaction improvement or discovery. We have recently developed new methods for synthesizing polyfunctional phosphines by C–C cross-couplings through rhodium-catalyzed C–H bond activation. These methods use a native P(III) atom as a directing group, and can be used in regioselective late-stage functionalization of phosphine ligands. Interestingly, some of the modified phosphines outperform their parents in Pd-catalyzed cross-coupling reactions.1 Introduction2 Early Examples of Transition-Metal-Catalyzed P(III)-Directed C–H Bond Activation/Functionalizations3 Synthesis of Polyfunctional Biarylphosphines by Late-Stage Alkylation: Application in Carboxylation Reactions4 Synthesis of Polyfunctional Biarylphosphines by Late-Stage Alkenylation: Application in Amidation Reactions5 Conclusion


Author(s):  
Jia-Xue Wu ◽  
Qing-Xia Yao ◽  
Wen-zeng Duan ◽  
DaCheng Li ◽  
Xianqiang Huang ◽  
...  

Herein, an efficient strategy to aryl-heteroaryl formation via RhIII-catalyzed ortho-C(sp2)−H heteroarylation of (hetero)arenes with heterocyclic boronates using a readily removable N-2,6-difluorophenyl arylamides directing group has been disclosed. A variety of...


Author(s):  
Shruti Rajput ◽  
Ramandeep Kaur ◽  
Nidhi Jain

Directing group assisted decarboxylative ortho-benzoylation of N-aryl-7-azaindoles with α-keto acids has been achieved by synergistic visible light promoted photoredox and palladium catalysis. The approach tenders rapid entry to aryl ketone...


2022 ◽  
Author(s):  
Chandra Volla ◽  
Arnab Dey ◽  
Anurag Singh

An efficient oxidative [3+2] annulation reaction of aryl hydrazones and heterobicyclic alkenes has been realized with inexpensive and earth-abundant cobalt-salts under aerobic conditions. The reaction proceeds via directing-group assisted C-H...


Author(s):  
Daqian Zhu ◽  
Hui Peng ◽  
Qian Liu ◽  
Yameng Sun ◽  
Bingling Luo ◽  
...  

Linear diaryliodoniums often undergo only single arylation and leave equivalent aryliodide as waste. Herein, we demonstrate that linear unsymmetrical diaryliodoniums could be tuned by dual nickel/palladium metal system to accomplish...


2021 ◽  
Vol 6 (47) ◽  
pp. 13414-13418
Author(s):  
Tsunehisa Hirashita ◽  
Harue Watanabe ◽  
Yuki Harada ◽  
Hideaki Kurabayashi ◽  
Yukinobu ◽  
...  

2021 ◽  
Author(s):  
Hongyu Wang ◽  
Chen-Fei Liu ◽  
Robert T. Martin ◽  
Osvaldo Gutierrez ◽  
Ming Joo Koh
Keyword(s):  

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