Green deep eutectic solvent assisted enzymatic preparation of biodiesel from yellow horn seed oil with microwave irradiation

2016 ◽  
Vol 123 ◽  
pp. 35-40 ◽  
Author(s):  
Yuhang Zhang ◽  
Xinxin Xia ◽  
Minghui Duan ◽  
Yingzhi Han ◽  
Juzhao Liu ◽  
...  
2021 ◽  
Author(s):  
José González-Rivera ◽  
Angelica Mero ◽  
Elena Husanu ◽  
Andrea Mezzetta ◽  
Carlo Ferrari ◽  
...  

Key features of the deep eutectic solvent-microwave assisted simultaneous extraction of polyphenols and delignification pretreatment of chestnut shell waste are presented.


2011 ◽  
Vol 92 (3) ◽  
pp. 308-313 ◽  
Author(s):  
M. Zahir Duz ◽  
Abdurrahman Saydut ◽  
Gulsen Ozturk

Author(s):  
Hai Truong Nguyen ◽  
Dung Thi Kim Ngo ◽  
Thinh Nguyen Huu Pham ◽  
Phuong Hoang Tran

Synthesis of zinc oxide nanoparticles (ZnO) which was found to be effective catalyst for Friedel-Crafts benzoylation reaction in the presence of deep eutectic solvent (DES). The method is one of the most important intermediates for preparing fine chemicals in the field of pharmaceuticals, which is a tool for organic syntheses of aromatic ketones. ZnO precursor was prepared from Zn(CH3COO)2.2H2O and H2C2O4.2H2O, ZnO nanoparticles were characterized by using X-ray Powder Diffraction (XRD), Scanning Electron Microscope (SEM). The benzoylation of aromatic compounds and benzoyl chloride using nanoparticles ZnO/ [CholineCl][Urea]2, under microwave irradiation afforded the desired products in high yields and short reaction times. The catalyst/solvent could be recycled several times without loss of efficient catalytic activity.


RSC Advances ◽  
2016 ◽  
Vol 6 (108) ◽  
pp. 106160-106170 ◽  
Author(s):  
Mo Zhang ◽  
Peng Liu ◽  
Yu-Heng Liu ◽  
Ze-Ren Shang ◽  
Hai-Chuan Hu ◽  
...  

A magnetic separable sulfonic acid catalyst was prepared and applied for the synthesis of 3,6-di(pyridin-3-yl)-1H-pyrazolo[3,4-b]pyridine-5-carbonitriles via three-component reaction of 1-phenyl-3-(pyridin-3-yl)-1H-pyrazol-5-amine, β-ketonitrile and aldehydes in DES.


RSC Advances ◽  
2021 ◽  
Vol 11 (25) ◽  
pp. 15204-15212
Author(s):  
Xiaoping Wang ◽  
Bing Xiao ◽  
Guolong Yang ◽  
Jingnan Chen ◽  
Wei Liu

Enzymatic preparation of phytosterol esters with fatty acids from high-oleic sunflower seed oil has been established with very mild reaction conditions.


RSC Advances ◽  
2016 ◽  
Vol 6 (43) ◽  
pp. 37031-37038 ◽  
Author(s):  
Phuong Hoang Tran ◽  
Hai Truong Nguyen ◽  
Poul Erik Hansen ◽  
Thach Ngoc Le

An efficient and environmentally benign method for regio- and chemo-selective Friedel–Crafts acylation using deep eutectic solvent ([CholineCl][ZnCl2]3) under solvent-free microwave irradiation.


2021 ◽  
Vol 8 (1) ◽  
pp. 40-50
Author(s):  
Samuel Choi ◽  
Hyung-Min Choi

A new, rapid, and eco-friendly technique for identification of polyethylene terephthalate (PET) composition in blend fabric was developed. This technique could replace a conventional composition identification of PET using toxic chemicals such as halogenated organic solvent or strong inorganic acid. Choline-based deep eutectic solvents (DES), such as ethylene glycol- choline chloride, were used as a treatment medium under microwave irradiation. The PET portion of the blend fabrics, such as 65/35 and 50/50 PET/cotton was completely removed by DES containing 5% NaOH (w/v) after 100–140 s of microwave irradiation. Various instrumental analyses confirmed the removal of PET. Finally, a commercial sample was also tested as a practical application of the new test method.


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