ChemInform Abstract: A Magnetic Particle Supported Sulfonic Acid Catalyst: Tuning Catalytic Activity Between Homogeneous and Heterogeneous Catalysis.

ChemInform ◽  
2012 ◽  
Vol 43 (49) ◽  
pp. no-no
Author(s):  
Nadiya Koukabi ◽  
Eskandar Kolvari ◽  
Mohammad Ali Zolfigol ◽  
Ardeshir Khazaei ◽  
Behzad Shirmardi Shaghasemi ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Heterogeneous Catalysis ◽  
Sulfonic Acid ◽  
Magnetic Particle ◽  
Acid Catalyst

A Magnetic Particle-Supported Sulfonic Acid Catalyst: Tuning Catalytic Activity between Homogeneous and Heterogeneous Catalysis

2012 ◽  
Vol 354 (10) ◽  
pp. 2001-2008 ◽  
Author(s):  
Nadiya Koukabi ◽  
Eskandar Kolvari ◽  
Mohammad Ali Zolfigol ◽  
Ardeshir Khazaei ◽  
Behzad Shirmardi Shaghasemi ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Heterogeneous Catalysis ◽  
Sulfonic Acid ◽  
Magnetic Particle ◽  
Acid Catalyst

Effect of surface acidity on the catalytic activity and deactivation of supported sulfonic acids during dehydration of methanol to DME

2020 ◽  
Vol 44 (39) ◽  
pp. 16810-16820
Author(s):  
Rosanna Viscardi ◽  
Vincenzo Barbarossa ◽  
Daniele Mirabile Gattia ◽  
Raimondo Maggi ◽  
Giovanni Maestri ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Sulfonic Acid ◽  
Water Resistance ◽  
Surface Acidity ◽  
Acid Catalyst ◽  
Acid Sites ◽  
Sulfonic Acids ◽  
Effect Of Surface

Superiorty of the supported sulfonic acid catalyst in terms of the water resistance and efficiency of the acid sites compared to the commercial reference.

scholarly journals Synthesis of Sulfonic Acid-Functionalized Zirconium Poly(Styrene-Phenylvinyl-Phosphonate)-Phosphate for Heterogeneous Epoxidation of Soybean Oil

Catalysts ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 710 ◽  
Author(s):  
Xiaochuan Zou ◽  
Xuyuan Nie ◽  
Zhiwen Tan ◽  
Kaiyun Shi ◽  
Cun Wang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Soybean Oil ◽  
Sulfonic Acid ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Thiol Group ◽  
Catalytic Performance ◽  
X Ray ◽  
Sulfonic Acid Groups

In this paper, a solid acid catalyst (ZPS–PVPA–SO3H) was prepared by anchoring thiol group on zirconium poly(styrene-phenylvinyl-phosphonate)-phosphate (ZPS–PVPA), followed by oxidation of thiol groups to obtain sulfonic acid groups. The solid acid catalyst was characterized by XPS, X-ray, EDS, SEM, and TG-DSC. The successful preparation of sulfonic acid-functionalized ZPS–PVPA was confirmed. Subsequently, the catalytic performance of ZPS–PVPA–SO3H was investigated in the epoxidation of soybean oil. The results demonstrated that ZPS–PVPA–SO3H can effectively catalyze epoxidation of soybean oil with TBHP as an oxidant. Moreover, there was no significant decrease in catalytic activity after 5 repeated uses of the ZPS–PVPA–SO3H. Interestingly, the ZPS–PVPA–SO3H was kept in 2 mol/L of HCl overnight after the end of the seventh reaction, and the catalytic activity was gradually restored during the eighth to tenth cycles.

scholarly journals Preparation, Characterization and Catalytic Activity of Alkyl Benzene Sulfonic Acid Carbon-Based Acid Catalyst

2015 ◽  
Vol 05 (02) ◽  
pp. 93-101 ◽  
Author(s):  
Huoxin Luan ◽  
Yunqiang Wu ◽  
Wenxiang Wu ◽  
Quansheng Chen ◽  
Hailing Zhang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Sulfonic Acid ◽  
Acid Catalyst ◽  
Alkyl Benzene ◽  
Benzene Sulfonic Acid ◽  
Carbon Based

Oxidative coupling of aromatic thiols to corresponding disulfides using magnetic particle-supported sulfonic acid catalyst and hydrogen peroxide under mild conditions

2015 ◽  
Vol 36 (3) ◽  
pp. 300-307 ◽  
Author(s):  
Askar Sabet ◽  
Eskandar Kolvari ◽  
Nadiya koukabi ◽  
Abdolrasool Fakhraee ◽  
Motahareh Ramezanpour ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Oxidative Coupling ◽  
Sulfonic Acid ◽  
Magnetic Particle ◽  
Acid Catalyst ◽  
Mild Conditions ◽  
Aromatic Thiols

An Efficient Synthesis of 2-Substituted Quinazolin-4(3H)-ones by Using Recyclable Wang Resin Supported Sulfonic Acid Catalyst

2020 ◽  
Vol 17 ◽  
Author(s):  
Kalyani K. ◽  
Srinivasa Reddy Kallam
Keyword(s):  
Sulfonic Acid ◽  
Functional Group ◽  
Acid Catalyst ◽  
Sulphonic Acid ◽  
Isatoic Anhydride ◽  
Efficient Synthesis ◽  
Wang Resin ◽  
Polymer Supported ◽  
High Yields

Abstract:: An efficient synthesis of 2-substituted Quinazolin-4(3H)-ones has been developed from isatoic anhydride with various amidoximes by using recyclable polymer supported sulphonic acid catalyst. Excellent functional group compatibil-ity and high yields are the important features of this protocol.

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