scholarly journals Influence of Amino Acids and Alcohols on Catalytic Oxidation of Cyclohexane

2021 ◽  
Vol 15 (3) ◽  
pp. 352-358
Author(s):  
Anatolij Ludyn ◽  
◽  
Volodymyr Reutskyy ◽  
Viktor Reutskyy ◽  
Yurij Hrynchuk ◽  
...  

Conducted experiments and collected data show that use of catalytic systems that contain individual amino acids and industrial catalyst – solution of cobalt naphtenate with cyclohexanone – have certain influence on the process of liquid-phase homogeneous oxidation of cyclohexane. The results of spectral studies of binary catalytic systems based on NC using additives of different nature (alcohols and nitrogen-containing modifiers) allow us to propose structural formulas of catalytic complexes.




Author(s):  
Mohsen Nikoorazm ◽  
Maryam Khanmoradi ◽  
Masoumeh Sayadian

Introduction:: MCM-41 was synthesized using the sol-gel method. Then two new transition metal complexes of Nickel (II) and Vanadium (IV), were synthesized by immobilization of adenine (6-aminopurine) into MCM-41 mesoporous. The compounds have been characterized by XRD, TGA, SEM, AAS and FT-IR spectral studies. Using these catalysts provided an efficient and enantioselective procedure for oxidation of sulfides to sulfoxides and oxidative coupling of thiols to their corresponding disulfides using hydrogen peroxide at room temperature. Materials and Methods:: To a solution of sulfide or thiol (1 mmol) and H2O2 (5 mmol), a determined amount of the catalyst was added. The reaction mixture was stirred at room temperature for the specific time under solvent free conditions. The progress of the reaction was monitored by TLC using n-hexane: acetone (8:2). Afterwards, the catalyst was removed from the reaction mixture by centrifugation and, then, washed with dichloromethane in order to give the pure products. Results:: All the products were obtained in excellent yields and short reaction times indicating the high activity of the synthesized catalysts. Besides, the catalysts can be recovered and reused for several runs without significant loss in their catalytic activity. Conclusion:: These catalytic systems furnish the products very quickly with excellent yields and VO-6AP-MCM-41 shows high catalytic activity compared to Ni-6AP-MCM-41.



1976 ◽  
Vol 7 (36) ◽  
pp. no-no
Author(s):  
I. YA. MOKROUSOVA ◽  
L. A. OSHIN ◽  
YU. A. TREGER


2016 ◽  
Vol 6 (21) ◽  
pp. 7896-7901 ◽  
Author(s):  
Carmine D'Agostino ◽  
Mark R. Feaviour ◽  
Gemma L. Brett ◽  
Jonathan Mitchell ◽  
Andrew P. E. York ◽  
...  

Solvent inhibition over surfaces affects behaviour and performances of heterogeneous catalysts.



Author(s):  
Gui Chen ◽  
Kuiyi You ◽  
Xiangbo Gong ◽  
Fangfang Zhao ◽  
Zhenpan Chen ◽  
...  

An efficient method for highly selective preparation of the high value-added benzyl alcohol (BOL) and benzaldehyde (BAL) from liquid-phase catalytic oxidation of toluene with molecular oxygen over CeO2-MnOx composite oxides...



2018 ◽  
Vol 25 (6) ◽  
pp. 1649-1658 ◽  
Author(s):  
Jignasu P. Mehta ◽  
Digvijaysinh K. Parmar ◽  
Haresh D. Nakum ◽  
Dinesh R. Godhani ◽  
Nisheeth C. Desai


1995 ◽  
Vol 24 (1-2) ◽  
pp. 59-64
Author(s):  
I. Mazzarino ◽  
A. Santos ◽  
C. Renzi


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