scholarly journals CuSO4·5H2O/NaAsc-Catalyzed Sonogashira Coupling Reaction of Aryl Iodides and Terminal Alkynes

2017 ◽  
Vol 37 (7) ◽  
pp. 1855
Author(s):  
Haitang Qi ◽  
Guanglin Song ◽  
Zhengjun Quan ◽  
Xicun Wang
2009 ◽  
Vol 23 (2) ◽  
pp. 75-77 ◽  
Author(s):  
Jin Tao Guan ◽  
Guang-Ao Yu ◽  
Lei Chen ◽  
Tan Qing Weng ◽  
Jing Jing Yuan ◽  
...  

ChemInform ◽  
2010 ◽  
Vol 41 (34) ◽  
pp. no-no
Author(s):  
Dinesh N. Sawant ◽  
Pawan J. Tambade ◽  
Yogesh S. Wagh ◽  
Bhalchandra M. Bhanage

2005 ◽  
Vol 83 (6-7) ◽  
pp. 711-715 ◽  
Author(s):  
Takahide Fukuyama ◽  
Ryo Yamaura ◽  
Ilhyong Ryu

A carbonylative three-component coupling reaction of aryl iodides with terminal alkynes catalyzed by PdCl2(PPh3)2 was carried out using an ionic liquid, [bmim]PF6, as the reaction medium, which resulted in good yields of α,β-acetylenic ketones. The low-viscosity ionic liquid, [bmim]NTf2, was not suitable for this reaction, since the background Sonogashira coupling reaction, a competing reaction, also proceeded.Key words: carbonylation, palladium, three-component coupling, ionic liquid, α,β-acetylenic ketones.


2010 ◽  
Vol 51 (20) ◽  
pp. 2758-2761 ◽  
Author(s):  
Dinesh N. Sawant ◽  
Pawan J. Tambade ◽  
Yogesh S. Wagh ◽  
Bhalchandra M. Bhanage

2011 ◽  
Vol 695 ◽  
pp. 113-116 ◽  
Author(s):  
Suttikiat Puechmongkol ◽  
Boonchoat Paosawatyanyong ◽  
Worawan Bhanthumnavin

An efficient Sonogashira-type coupling reaction of terminal alkynes and aryl bromides by microwave activation with short reaction time under mild conditions are presented. It is illustrated herein that the traditional Sonogashira coupling reaction can be achieved with a much more efficient yet environmentally friendly condition. In contrary to the usually required 10 mol% Pd loading and the use of conventional heating at 60 °C for 24 h in order for a reaction to proceed satisfactorily, with a 100 W microwave activation, the reaction of terminal alkynes with substituted aryl bromides can be achieved with only a 2.5 mol% Pd in 10 min. The yield was improved with microwave irradiation.


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