Effect of polymer, poly(ethylene glycol)(PEG-400), on solvent and rotational relaxation of coumarin-480 in an ionic liquid containing microemulsions

2010 ◽  
Vol 12 (15) ◽  
pp. 3878 ◽  
Author(s):  
Rajib Pramanik ◽  
Souravi Sarkar ◽  
Chiranjib Ghatak ◽  
Palash Setua ◽  
Nilmoni Sarkar
Keyword(s):  
Ionic Liquid ◽  
Ethylene Glycol ◽  
Rotational Relaxation ◽  
Poly Ethylene Glycol ◽  
Peg 400 ◽  
Poly Ethylene

An Efficient One-Pot Four-Component Hantzsch Reaction to Prepare Hydroquinolines Catalyzed by a Poly(ethylene glycol) Bridged Dicationic Basic Ionic Liquid under Solvent-Free Conditions

2013 ◽  
Vol 781-784 ◽  
pp. 247-252
Author(s):  
Jun Luo ◽  
Tan Tan Xing ◽  
Ying Lei Wang ◽  
Jian Feng Ju
Keyword(s):  
Ionic Liquid ◽  
Ethylene Glycol ◽  
Solvent Free ◽  
Hantzsch Reaction ◽  
Poly Ethylene Glycol ◽  
One Pot ◽  
Solvent Free Conditions ◽  
Basic Ionic Liquid ◽  
Activity Loss ◽  
Poly Ethylene

A piperidine-functionalized poly (ethylene glycol) bridged dicationic ionic liquid PEG800-DPIL(Cl) was synthesized and applied to catalyze the four-component Hantzsch reaction under solvent-free conditions and afford hydroquinolines with high to excellent yields. PEG800-DPIL(Cl) could be recovered by simple workup and recycled for at least eight times without obvious activity loss.

scholarly journals Poly(ethylene glycol) Supported Metal Nitrates as Well-Organized Reagents for Hunsdiecker Conversion of α,β-Unsaturated Acids to β-Nitrostyrenes under Solvent and Acid-Free Conditions

2019 ◽  
Vol 31 (8) ◽  
pp. 1798-1800
Author(s):  
K. Ramesh ◽  
S. Shylaja ◽  
S. Ramgopal ◽  
A. Sambashiva Rao ◽  
K.C. Rajanna
Keyword(s):  
Ethylene Glycol ◽  
Solvent Free ◽  
The Other ◽  
Ferric Nitrate ◽  
Poly Ethylene Glycol ◽  
Peg 400 ◽  
Metal Nitrates ◽  
Solvent Free Conditions ◽  
Poly Ethylene ◽  
Supported Metal

Poly(ethylene glycol) (PEG) supported metal nitrates such as ferric nitrate and manganese nitrate were accomplished as well-organized reagents for Hunsdiecker conversion of α,β-unsaturated acids to β-nitrostyrenes under acid-free and solvent free conditions using grind-stone technique. However, in the case of unsaturated aliphatic acids, nitro alkene derivatives were obtained as products. PEG-400 was found the best among the other PEGs (PEG-200,300, 400, 600, 3000 and 6000) used in this protocol.

An Efficient and Green Procedure for the Preparation of 2-{2-[N′-(2-Hydroxybenzylidene)hydrazino]thiazol-4-yl}phenols

2007 ◽  
Vol 60 (4) ◽  
pp. 302 ◽  
Author(s):  
Vinod T. Kamble ◽  
Bhaskar S. Davane ◽  
Sanjay A. Chavan ◽  
Raghunath B. Bhosale
Keyword(s):  
Ethylene Glycol ◽  
Environmentally Benign ◽  
Preparation Procedure ◽  
Poly Ethylene Glycol ◽  
Thiazole Derivatives ◽  
Peg 400 ◽  
Convenient Approach ◽  
Poly Ethylene ◽  
High Yields ◽  
Green Procedure

An efficient and convenient approach for the synthesis of thiazole derivatives from α-halo ketones, thiosemicarbazide, and o-hydroxybenzaldehydes in poly(ethylene glycol) (PEG-400) is described. The preparation procedure presented is operationally simple and environmentally benign. Some of the major advantages of this procedure are high yields and ease of operation.

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