72914-19-3,With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.72914-19-3,4,4′-Di-tert-butyl-2,2′-bipyridine,as a common compound, the synthetic route is as follows.
A magnetically stirred suspension of 4,4?-di-tert-butyl-2,2?-dipyridyl (118 mg, 0.44 mmol) and tetrakis(2-phenylpyridine-C2,N?)(mu-dichloro)-diiridium (214 mg, 0.2 mmol) in 10 mL of 1,2-ethanediol under nitrogen was heated to 150 C. The mixture was kept at this temperature for 15h. All the solids dissolved to yield a clear, yellow solution. After cooling the mixture to room temperature, 150 mL of water was added. The excess of bipyridine ligand was removed through three extractions with diethyl ether (50 mL), and the aqueous layer was subsequently heated to 60-70 C. NH4PF6 (1 g) in 10 mL of water was added, and the PF6 salt of the chromophore immediately precipitated. After cooling the suspension to 5 C, the yellow solid was separated through filtration, dried, and recrystallized through acetonitrile/ether diffusion. Yield: 280 mg (77%).
The synthetic route of 72914-19-3 has been constantly updated, and we look forward to future research findings.
Reference£º
Article; Ye, Hongqiang; Ye, Qianwen; Cheng, Dongping; Li, Xiaonian; Xu, Xiaoliang; Tetrahedron Letters; vol. 59; 21; (2018); p. 2046 – 2049;,
Metal catalyst and ligand design
Ligand Template Strategies for Catalyst Encapsulation – NCBI