In situ sulfonic acid-functionalized MIL-101(Cr) catalyzed liquid-phase Beckmann rearrangement of cyclohexanone oxime

2020 ◽  
Vol 297 ◽  
pp. 110031
Author(s):  
Qiaoqiao Niu ◽  
Mengjiao Liu ◽  
Zhiying Xiao ◽  
Xia Yuan ◽  
Jian Wu
Keyword(s):  
Liquid Phase ◽  
Sulfonic Acid ◽  
Beckmann Rearrangement ◽  
Cyclohexanone Oxime

scholarly journals Organocatalyzed Beckmann Rearrangement of Cyclohexanone Oxime by Trifluoroacetic Anhydride in a Microreactor

2021 ◽  
Author(s):  
Chencan Du ◽  
Yubin Wang ◽  
Jian Deng ◽  
Guangsheng Luo
Keyword(s):  
Experimental Data ◽  
Reaction Rate ◽  
Beckmann Rearrangement ◽  
Trifluoroacetic Anhydride ◽  
Cyclohexanone Oxime ◽  
In Situ Ftir ◽  
Equilibrium Relationship ◽  
Experimental Parameters ◽  
Good Agreement

An efficient method for the Beckmann rearrangement of cyclohexanone oxime (CHO) catalyzed by trifluoroacetic anhydride (TFAA) is proposed in this work. The effects of experimental parameters on the reaction rate are studied, including CHO concentration, TFAA/CHO ratio, temperature, and CPL concentration. The reaction rate shows a linear relationship with TFAA/CHO ratio and reduces with the increasing of CPL concentration. Based on the experimental data and the study of in-situ FTIR, a reaction mechanism is proposed and the equilibrium relationship between CPL and TFAA is established. A rate constant model is developed and is in good agreement with the experimental results. The TFAA/TFA catalytic system allows high conversion and reaction rate compared with other organic acids.

Dual-sulfonated dipyridinium phosphotungstate catalyst for liquid-phase Beckmann rearrangement of cyclohexanone oxime

RSC Advances ◽  
2014 ◽  
Vol 4 (30) ◽  
pp. 15635 ◽  
Author(s):  
Dan Mao ◽  
Zhouyang Long ◽  
Yu Zhou ◽  
Jing Li ◽  
Xiaochen Wang ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Beckmann Rearrangement ◽  
Cyclohexanone Oxime

Beckmann rearrangement of cyclohexanone oxime to ε-caprolactam catalyzed by sulfonic acid resin in DMSO

2008 ◽  
Vol 9 (6) ◽  
pp. 1521-1526 ◽  
Author(s):  
Kuiyi You ◽  
Liqiu Mao ◽  
Dulin Yin ◽  
Pingle Liu ◽  
He’an Luo
Keyword(s):  
Sulfonic Acid ◽  
Beckmann Rearrangement ◽  
Cyclohexanone Oxime ◽  
Acid Resin ◽  
Sulfonic Acid Resin

Autocatalytic Beckmann Rearrangement of Cyclohexanone-Oxime in Liquid Phase

2007 ◽  
pp. 129-132
Author(s):  
Tohru Setoyama ◽  
Yuuji Kawaragi ◽  
Naoko Fujita ◽  
Toshiyuki Suzuki ◽  
Takeshi Matsuoka ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Beckmann Rearrangement ◽  
Cyclohexanone Oxime
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