scholarly journals Palladium Nanoparticles Immobilized on Poly(vinyl chloride)-Supported Pyridinium as an Efficient and Recyclable Catalyst for Suzuki-Miyaura Cross-Coupling Reaction

2011 ◽  
Vol 8 (4) ◽  
pp. 1490-1497
Author(s):  
Bo Zhou ◽  
Yi-Qun Li

The palladium nanoparticles immobilized on the polymeric surface of poly(vinyl chloride)-supported pyridinium (PVC-Py-Pd0) were achieved by a simple procedure by applying the corresponding functionalized polymer and palladium chloride in ethanol solution. The as-prepared catalyst (PVC-Py-Pd0) was found to be air and moisture stable and exhibits significant catalytic activity for Suzuki-Miyaura cross-coupling reaction of various aryl halides and phenylboronic acid under milder operating conditions. The procedure presented here showed several merits such as short reaction time, simple experimental and isolated procedure and excellent yields of products. Furthermore, the catalyst can be easily recovered and reused for at least six times with consistent activities.

Cellulose ◽  
2020 ◽  
Vol 27 (6) ◽  
pp. 3335-3357 ◽  
Author(s):  
Manjunatha Kempasiddaiah ◽  
Vishal Kandathil ◽  
Ramesh B. Dateer ◽  
B. S. Sasidhar ◽  
Shivaputra A. Patil ◽  
...  

2020 ◽  
Vol 15 (3) ◽  
pp. 604-616
Author(s):  
Girish Basavaraju ◽  
Ravishankar Rajanna

A custom-made tubular flow reactor was utilized to develop a mathematical model and optimize the Suzuki-Miyaura cross coupling reaction. In this study, the experimentation was designed and executed through the statistical design of experiments (DoE) approach via response surface methodology. The effect of molar ratios of phenylboronic acid (1) and 4-bromophenol (2), temperature, the catalyst tetrakis(triphenylphosphine)palladium, and equivalence of aqueous tripotassium phosphate was studied in detail. The flow reactor profile was in good agreement with batch conditions and significant improvements to the overall reaction time and selectivity towards desired [1-1-biphenyl]-4-ol (3) was achieved. The Suzuki coupling reaction in batch condition would take on an average of 4 to 6 hours to complete, which was effectively accomplished in 60 to 70 minutes in this tubular reactor setup and could be operated continuously. The reaction model is in good agreement with the reaction conditions. Copyright © 2020 BCREC Group. All rights reserved 


2020 ◽  
Vol 34 (3) ◽  
Author(s):  
Vishal Kandathil ◽  
Manjunatha Kempasiddaiah ◽  
Sanna Kotrappanavar Nataraj ◽  
Sasidhar Balappa Somappa ◽  
Siddappa A. Patil

2008 ◽  
Vol 9 (8) ◽  
pp. 1685-1687 ◽  
Author(s):  
Changduo Pan ◽  
Miaochang Liu ◽  
Li Zhao ◽  
Huayue Wu ◽  
Jinchang Ding ◽  
...  

RSC Advances ◽  
2015 ◽  
Vol 5 (26) ◽  
pp. 20098-20107 ◽  
Author(s):  
Hojat Veisi ◽  
Abbas Amini Manesh ◽  
Neda Eivazi ◽  
Ali Reza Faraji

The synthesis and application of SBA-15/1,3-DCG/Pd as a novel heterogeneous and reusable nano catalyst in Suzuki reactions was described.


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