Chemical structure and catalytic activity of quaternary onium salt-type triphase catalysts based on CPS microspheres

2011 ◽  
Vol 123 (2) ◽  
pp. 824-832 ◽  
Author(s):  
Baojiao Gao ◽  
Zhangbin Wang ◽  
Lin Wang
Keyword(s):  
Catalytic Activity ◽  
Chemical Structure ◽  
Onium Salt ◽  
Quaternary Onium Salt

Synthesis and ‎characterization ‎of a new acid ‎molten salt and ‎the study of ‎its ‎thermal ‎behavior and ‎catalytic ‎activity ‎in Fischer ‎esterification ‎

2021 ◽  
Author(s):  
Lia Zaharani ◽  
Nader Ghaffari Khaligh ◽  
Mohd Rafie Johan ◽  
Hayedeh Gorjian
Keyword(s):  
Mass Spectrometry ◽  
Catalytic Activity ◽  
Thermal Behavior ◽  
Molten Salt ◽  
Structure Elucidation ◽  
Chemical Structure ◽  
2D Nmr ◽  
Synthesis And Characterization ◽  
Fischer Esterification

A new acid molten salt was ‎‎prepared and its structure ‎‎elucidation was conducted ‎‎by FTIR, ‎‎1D NMR, 2D NMR, ‎‎and mass spectrometry. ‎Further support to ‎elucidate the chemical ‎structure of...

scholarly journals Efficient Ring Opening Reaction of Epoxides with Oxygen Nucleophiles Catalyzed by Quaternary Onium Salt

2013 ◽  
Vol 34 (8) ◽  
pp. 2286-2290 ◽  
Author(s):  
Jin Won Kim ◽  
Dae Won Cho ◽  
Gyoosoon Park ◽  
Sung Hong Kim ◽  
Choon Sup Ra
Keyword(s):  
Ring Opening ◽  
Onium Salt ◽  
Ring Opening Reaction ◽  
Quaternary Onium Salt

Enhanced catalytic activity of new di-site onium salt in the kinetics of α-Tolunitrile monoalkylation

2020 ◽  
Author(s):  
P.A. Vivekanand ◽  
T.K. Fayaz ◽  
S. Harikumar ◽  
P. Kamaraj ◽  
V. Thiruvengadam ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Onium Salt ◽  
Kinetics Of

scholarly journals The catalytic activity and chemical structure of nano MoS2 synthesized in a controlled environment

2016 ◽  
Vol 1 (2) ◽  
pp. 165-175 ◽  
Author(s):  
H. P. Zhang ◽  
H. F. Lin ◽  
Y. Zheng ◽  
Y. F. Hu ◽  
A. MacLennan
Keyword(s):  
Catalytic Activity ◽  
Chemical Structure ◽  
Controlled Environment ◽  
Hydrothermal Preparation ◽  
Synthesis Mechanism ◽  
First Time

The redox synthesis mechanism is, for the first time, revealed in a novel hydrothermal preparation of nano MoS2 with MoO3 as precursors. The S-to-Mo ratio plays a key role in influencing the morphology and activity of catalyst MoS2.

Nano-12-Tungstophosporic Acid Cesium Salt Synthesized by Ultrasound as Catalyst for Alkylation of Benzene with dec-1-ene

2017 ◽  
Vol 15 (3) ◽  
Author(s):  
Elif Akbay ◽  
Gülberk Demir
Keyword(s):  
Particle Size ◽  
Catalytic Activity ◽  
Ultrasonic Irradiation ◽  
Chemical Structure ◽  
Average Particle Size ◽  
Average Particle ◽  
Original State ◽  
Cesium Salt ◽  
Alkylation Of Benzene ◽  
Catalyst Reusability

Abstract Nano 12-tungtophosphoric acid cesium salt (Cs-TPA) was synthesized under ultrasonic irradiation in nanoscale. The obtained catalyst was characterized by various methods. These analyzes indicate that the chemical structure and crystallinity of nano Cs-TPA remained unchanged while its morphology was found to be different from traditional Cs-TPA which is in irregular shape, becoming spherical with an average particle size of about 50 nm. Nano Cs-TPA was examined in the alkylation of benzene with dec-1-ene, its catalytic activity was remarkably enhanced compared to its original state. The catalyst reusability experiment also showed that the activity of nano Cs-TPA does not decrease even after five reused cycles.

ChemInform Abstract: Efficient Ring Opening Reaction of Epoxides with Oxygen Nucleophiles Catalyzed by Quaternary Onium Salt.

ChemInform ◽  
2013 ◽  
Vol 44 (50) ◽  
pp. no-no
Author(s):  
Jin Won Kim ◽  
Dae Won Cho ◽  
Gyoosoon Park ◽  
Sung Hong Kim ◽  
Choon Sup Ra
Keyword(s):  
Ring Opening ◽  
Onium Salt ◽  
Ring Opening Reaction ◽  
Quaternary Onium Salt
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