scholarly journals Hydroxynitrile lyases covalently immobilized in continuous flow microreactors

2019 ◽  
Vol 9 (5) ◽  
pp. 1189-1200 ◽  
Author(s):  
Michelle P. van der Helm ◽  
Paula Bracco ◽  
Hanna Busch ◽  
Katarzyna Szymańska ◽  
Andrzej B. Jarzębski ◽  
...  

Enzymes are supreme catalysts when it comes to high enantiopurities and their immobilization will pave the way for continuous operation.

2018 ◽  
Vol 6 (11) ◽  
pp. 15425-15433 ◽  
Author(s):  
Yanbiao Liu ◽  
Xiang Liu ◽  
Shengnan Yang ◽  
Fang Li ◽  
Chensi Shen ◽  
...  

Catalysts ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 663
Author(s):  
Christophe Len ◽  
Renzo Luisi

Continuous flow chemistry is radically changing the way of performing chemical synthesis, and several chemical and pharmaceutical companies are now investing in this enabling technology [...]


2020 ◽  
Vol 397 ◽  
pp. 125361 ◽  
Author(s):  
Wenhua Xu ◽  
Yuanhai Su ◽  
Minjing Shang ◽  
Xueming Lu ◽  
Qinghua Lu

Synlett ◽  
2020 ◽  
Vol 31 (05) ◽  
pp. 497-501 ◽  
Author(s):  
Koichiro Masuda ◽  
Yao Wang ◽  
Shun-ya Onozawa ◽  
Shigeru Shimada ◽  
Nagatoshi Koumura ◽  
...  

Rose Bengal was immobilized on a vinylimidazolium functionalized support, and the heterogeneous organic photosensitizer thus prepared was applied for photooxidation reactions of organic molecules under continuous-flow conditions. Substituents of the cation part of the support were found to play a crucial role in determining the lifetime of the catalyst. More than 11 days continuous operation of a flow reaction was achieved.


2016 ◽  
Vol 45 (1) ◽  
pp. 83-117 ◽  
Author(s):  
Hannes P. L. Gemoets ◽  
Yuanhai Su ◽  
Minjing Shang ◽  
Volker Hessel ◽  
Rafael Luque ◽  
...  

This review gives an exhaustive overview of the engineering principles, safety aspects and chemistry associated with liquid phase oxidation in continuous-flow microreactors.


Catalysts ◽  
2018 ◽  
Vol 8 (5) ◽  
pp. 221 ◽  
Author(s):  
Katarzyna Maresz ◽  
Agnieszka Ciemięga ◽  
Julita Mrowiec-Białoń

In this work, the kinetics of Meerwein–Ponndorf–Verley chemoselective reduction of carbonyl compounds was studied in monolithic continuous-flow microreactors. To the best of our knowledge, this is the first report on the MPV reaction kinetics performed in a flow process. The microreactors are a very attractive alternative to the batch reactors conventionally used in this process. The proposed micro-flow system for synthesis of unsaturated secondary alcohols proved to be very efficient and easily controlled. The microreactors had reactive cores made of zirconium-functionalized silica monoliths of excellent catalytic properties and flow characteristics. The catalytic experiments were carried out with the use of 2-butanol as a hydrogen donor. Herein, we present the kinetic parameters of cyclohexanone reduction in a flow reactor and data on the reaction rate for several important ketones and aldehydes. The lack of diffusion constraints in the microreactors was demonstrated. Our results were compared with those from other authors and demonstrate the great potential of microreactor applications in fine chemical and complex intermediate manufacturing.


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