The effect of water-miscible organic solvents on the substitution reaction of Keggin-type heteropolysilicates and -germanates with vanadium(V) ion

Polyhedron ◽  
2009 ◽  
Vol 28 (1) ◽  
pp. 43-48 ◽  
Author(s):  
Tadaharu Ueda ◽  
Jun-ichi Nambu ◽  
Hirofumi Yokota ◽  
Masashi Hojo
Keyword(s):  
Organic Solvents ◽  
Substitution Reaction ◽  
Keggin Type ◽  
Effect Of Water

Effect of Water Content in Cell-Entrapping Gels on Enzyme Activity in Organic Solvents

1987 ◽  
Vol 501 (1 Enzyme Engine) ◽  
pp. 343-346 ◽  
Author(s):  
KENJI SONOMOTO ◽  
YASUSHI HOSOKAWA ◽  
ATSUO TANAKA
Keyword(s):  
Enzyme Activity ◽  
Water Content ◽  
Organic Solvents ◽  
Effect Of Water

Effect of Water and Organic Solvents on the Ionic Dissociation of Ionic Liquids

2007 ◽  
Vol 111 (23) ◽  
pp. 6452-6456 ◽  
Author(s):  
Wenjing Li ◽  
Zhaofu Zhang ◽  
Buxing Han ◽  
Suqin Hu ◽  
Ye Xie ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Organic Solvents ◽  
Effect Of Water ◽  
Ionic Dissociation

On the effect of ion pairing of Keggin type polyanions with quaternary ammonium cations on redox potentials in organic solvents

2016 ◽  
Vol 18 (32) ◽  
pp. 22487-22493 ◽  
Author(s):  
Bo Chen ◽  
Ronny Neumann
Keyword(s):  
Electrochemical Properties ◽  
Organic Solvents ◽  
Quaternary Ammonium ◽  
Ion Pairing ◽  
Redox Potentials ◽  
Quaternary Ammonium Cations ◽  
Keggin Type

The electrochemical properties of polyoxometalates in organic solvents show an interrelation between redox potentials, solvents and ion pairing.

scholarly journals An Eco-Friendly Improved Protocol for the Synthesis of Bis(3-indolyl)methanes Using Poly(4-vinylpyridinium)hydrogen Sulfate as Efficient, Heterogeneous, and Recyclable Solid Acid Catalyst

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Janardhan Banothu ◽  
Rajitha Gali ◽  
Ravibabu Velpula ◽  
Rajitha Bavantula ◽  
Peter A. Crooks
Keyword(s):  
Organic Solvents ◽  
Substitution Reaction ◽  
Electrophilic Substitution ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Reaction Times ◽  
Acid Catalyst ◽  
Electrophilic Substitution Reaction ◽  
Hydrogen Sulfate ◽  
Work Up

Highly efficient and eco-friendly protocol for the synthesis of bis(3-indolyl)methanes by the electrophilic substitution reaction of indole with aldehydes catalyzed by poly(4-vinylpyridinium)hydrogen sulfate was described. Excellent yields, shorter reaction times, simple work-up procedure, avoiding hazardous organic solvents, and reusability of the catalyst are the most obvious advantages of this method.

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