scholarly journals Synthesis of 1,5-Functionalized 1,2,3-Triazoles Using Ionic Liquid/Iron(III) Chloride as Efficient and Reusable Homogeneous Catalyst

Author(s):  
Antonio De Nino ◽  
Pedro Merino ◽  
Vincenzo Algieri ◽  
Monica Nardi ◽  
Maria Luisa Di Gioia ◽  
...  

An efficient, eco-compatible and very cheap method for the construction of triazoles via eliminative azide–olefin cycloaddition (EAOC) reaction has been developed by a catalytic system IL/FeCl3, offering an highly regioselective approach to structurally diverse 1,5-disubstituted 1,2,3-triazoles in up to 95% yield. This strategy features the reuse of catalytic system through simple operations. Mechanistic studies indicated that an asynchronous concerted dipolar cycloaddition-elimination process might be involved.

2019 ◽  
Vol 55 (6) ◽  
pp. 771-774
Author(s):  
Ruixuan Chen ◽  
Kun Rui ◽  
Xiaofei Yang ◽  
Aoming Huang ◽  
Yao Zhang ◽  
...  

A novel quasi-Mxene structure hybrid is first realized through topochemical pyrolysis with the assistance of an ionic liquid.


2015 ◽  
Vol 145 (3) ◽  
pp. 824-833 ◽  
Author(s):  
Anilkumar Satapathy ◽  
Sandip T. Gadge ◽  
Etty N. Kusumawati ◽  
Kei Harada ◽  
Takehiko Sasaki ◽  
...  

2011 ◽  
Vol 9 (1) ◽  
pp. 175-179 ◽  
Author(s):  
Zhongqiang Zhou ◽  
Yong Sun ◽  
Aiqing Zhang

AbstractChiral aminosulfonamides containing imidazolium group were used as ligands for the ruthenium(II)-catalyzed asymmetric transfer hydrogenation of prochiral ketones in ionic liquid, affording good to excellent conversions and enantiomeric excesses. The catalytic system could be easily recovered and reused several times.


Author(s):  
Feng Zhao ◽  
Sa Guo ◽  
Yan Zhang ◽  
Ting Sun ◽  
Xin Wang ◽  
...  

We report a practical Ag-catalyzed decarboxylative difluoroalkylation–carbocyclization reaction. Various structurally diverse gem-fluorinated quinolinones were obtained in moderate to good yields. Mechanistic studies suggested that the catalytic system involved a formal...


2020 ◽  
Vol 44 (9-10) ◽  
pp. 557-565
Author(s):  
Zhenzhen Geng ◽  
Hong-yu Zhang ◽  
Guohui Yin ◽  
Yuecheng Zhang ◽  
Jiquan Zhao

The ionic liquid 1-methyl-3-(3-sulfopropyl)imidazolium chloride ([MIMPs]+Cl-) in combination with 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) and sodium nitrite (NaNO2) as a catalytic system demonstrates high efficiency in the one-pot two-step aerobic oxidative condensation of benzyl alcohols with 1,2-phenylenediamines to give benzimidazoles. Various benzimidazoles are obtained in good to excellent yields by this strategy.


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