Highly active recyclable heterogeneous Pd/ZnO nanoparticle catalyst: sustainable developments for the C-O and C-N bond cross-coupling reactions of aryl halides under ligand-free conditions was written by Hosseini-Sarvari, Mona;Razmi, Zahra. And the article was included in RSC Advances in 2014.Product Details of 4783-68-0 This article mentions the following:
Efficient Pd supported on ZnO nanoparticles for the ligand-free O-arylation and N-arylation of phenols and various N-H heterocycles with aryl chlorides, bromides, and iodides were readily synthesized and characterized. The amount of palladium on ZnO was 9.84 wt% (0.005 g of the catalyst contains 462 x 10-8 mol% of Pd) which was determined by ICP anal. This nano sized Pd/ZnO with an average particle size of 20-25 nm and sp. surface area 40.61 m2 g-1 was used as a new reusable heterogeneous catalyst for the formation of C-O and C-N bonds in organic synthesis. This protocol gave the arylated product in satisfactory yields without any N2 or Ar flow. The catalyst was recovered and recycled several times without marked loss of activity. In the experiment, the researchers used many compounds, for example, 2-Phenoxypyridine (cas: 4783-68-0Product Details of 4783-68-0).
2-Phenoxypyridine (cas: 4783-68-0) belongs to pyridine derivatives. Pyridine has a dipole moment and a weaker resonant stabilization than benzene (resonance energy 117 kJ璺痬ol閳? in pyridine vs. 150 kJ璺痬ol閳? in benzene). Pyridine, its benzo and pyridine-based compounds play diverse roles in organic chemistry. Pyridine-based materials are valued for their optical and physical properties as well as their medical potential. Product Details of 4783-68-0