PEG-SANM nanocomposite: a new catalytic application towards clean and highly efficient Biginelli-like reaction under solvent-free conditions

RSC Advances ◽  
2016 ◽  
Vol 6 (71) ◽  
pp. 67072-67085 ◽  
Author(s):  
Seyedeh Zahra Dalil Heirati ◽  
Farhad Shirini ◽  
Abdollah Fallah Shojaei

The poly (ethylene glycol)-sulfonated sodium montmorillonite (PEG-SANM) nanocomposite with various ratios was prepared and used as a highly efficient and reusable solid acid nanocatalyst for synthesis of pyrimidinone derivatives under solvent-free conditions.

2013 ◽  
Vol 781-784 ◽  
pp. 247-252
Author(s):  
Jun Luo ◽  
Tan Tan Xing ◽  
Ying Lei Wang ◽  
Jian Feng Ju

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.


2019 ◽  
Vol 31 (8) ◽  
pp. 1798-1800
Author(s):  
K. Ramesh ◽  
S. Shylaja ◽  
S. Ramgopal ◽  
A. Sambashiva Rao ◽  
K.C. Rajanna

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.


RSC Advances ◽  
2015 ◽  
Vol 5 (79) ◽  
pp. 64170-64179 ◽  
Author(s):  
Jing Song ◽  
Qun Ye ◽  
Wang Ting Lee ◽  
Xiaobai Wang ◽  
Tao He ◽  
...  

A series of perfluoropolyether/poly(ethylene glycol) (PFPE/PEG) triblock copolymers PEG/PFPE/PEG (P1–P3) and PFPE/PEG/PFPE (P4–P5) were prepared via thiol–ene click reaction in high yields.


Sign in / Sign up

Export Citation Format

Share Document