1416802-91-9Relevant articles and documents
Copper(II) supported on magnetic chitosan: A green nanocatalyst for the synthesis of 2,4,6-triaryl pyridines by C-N bond cleavage of benzylamines
Shaabani, Ahmad,Borjian Boroujeni, Mahmoud,Laeini, Mohmmad Sadegh
, p. 27706 - 27713 (2016)
In this paper, Cu/magnetic chitosan has been synthesized and used as a new green nanocatalyst for highly efficient synthesis of 2,4,6-triaryl pyridines via C-N bond cleavage of benzylamines under aerobic oxidation at 90 °C. The chemical and structural properties of the synthesized catalyst were determined by scanning electron microscopy, energy-dispersive X-ray, X-ray powder diffraction, thermogravimetric analysis and flame atomic absorption spectroscopies. It is found that the catalyst can be easily separated from the reaction mixture by an external magnetic field and recycled several times without a significant loss in activity.
One-Pot Reactions for Modular Synthesis of Polysubstituted and Fused Pyridines
Song, Zhidong,Huang, Xin,Yi, Wenbin,Zhang, Wei
supporting information, p. 5640 - 5643 (2016/11/17)
A 2-fluoro-1,3-dicarbonyl-initiated one-pot Michael addition/[5 + 1] annulation/dehydrofluorinative aromatization reaction sequence is introduced for regioselective synthesis of di-, tri-, tetra-, and pentasubstituted pyridines as well as fused pyridines. This simple and modular synthesis is performed using readily available starting materials and under transition-metal catalyst-free conditions.