Asymmetric Covalent Triazine Framework for Enhanced Visible‐Light Photoredox Catalysis via Energy Transfer Cascade

2018 ◽  
Vol 57 (27) ◽  
pp. 8316-8320 ◽  
Author(s):  
Wei Huang ◽  
Jeehye Byun ◽  
Irina Rörich ◽  
Charusheela Ramanan ◽  
Paul W. M. Blom ◽  
...  
2020 ◽  
Vol 59 (42) ◽  
pp. 18368-18373
Author(s):  
Wei Huang ◽  
Niklas Huber ◽  
Shuai Jiang ◽  
Katharina Landfester ◽  
Kai A. I. Zhang

2020 ◽  
Vol 132 (42) ◽  
pp. 18526-18531
Author(s):  
Wei Huang ◽  
Niklas Huber ◽  
Shuai Jiang ◽  
Katharina Landfester ◽  
Kai A. I. Zhang

Author(s):  
Arumugavel Murugan ◽  
Venkata Nagarjuna Babu ◽  
Nagaraj Sabarinathan ◽  
Sharada Duddu. S

Here we report a visible-light-promoted metal-free regioselective C3-H trifluoromehtylation reaction that proceeds via radical mechanism and which supported by control experiments. The combination of photoredox catalysis and hypervalent iodine reagent provides a practical approach for the present trifluoromethylation reaction and synthesis of a library of trifluoromethylated indazoles.


2019 ◽  
Author(s):  
Tuhin Patra ◽  
Satobhisha Mukherjee ◽  
Jiajia Ma ◽  
Felix Strieth-Kalthoff ◽  
Frank Glorius

<sub>A general strategy to access both aryl and alkyl radicals by photosensitized decarboxylation of the corresponding carboxylic acids esters has been developed. An energy transfer mediated homolysis of unsymmetrical sigma-bonds for a concerted fragmentation/decarboxylation process is involved. As a result, an independent aryl/alkyl radical generation step enables a series of key C-X and C-C bond forming reactions by simply changing the radical trapping agent.</sub>


Synthesis ◽  
2020 ◽  
Author(s):  
Jia-Jia Zhao ◽  
Hong-Hao Zhang ◽  
Shouyun Yu

Visible light photoredox catalysis has recently emerged as a powerful tool for the development of new and valuable chemical transformations under mild conditions. Visible-light promoted enantioselective radical transformations of imines and iminium intermediates provide new opportunities for the asymmetric synthesis of amines and asymmetric β-functionalization of unsaturated carbonyl compounds. In this review, the advance in the catalytic asymmetric radical functionalization of imines, as well as iminium intermediates, are summarized. 1 Introduction 2 The enantioselective radical functionalization of imines 2.1 Asymmetric reduction 2.2 Asymmetric cyclization 2.3 Asymmetric addition 2.4 Asymmetric radical coupling 3 The enantioselective radical functionalization of iminium ions 3.1 Asymmetric radical alkylation 3.2 Asymmetric radical acylation 4 Conclusion


2013 ◽  
Vol 15 (9) ◽  
pp. 2136-2139 ◽  
Author(s):  
Yusuke Yasu ◽  
Takashi Koike ◽  
Munetaka Akita

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