Adding a certain compound to certain chemical reactions, such as: 6318-51-0, (4-Chlorophenyl)(pyridin-2-yl)methanone, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound, 6318-51-0, blongs to pyridine-derivatives compound. Application In Synthesis of (4-Chlorophenyl)(pyridin-2-yl)methanone
(1) The chiral ligand L2 (17.3 mg, 0.025 mmol), metal complex [Ir(COD)Cl] 2 (8.0 g,0.012 mmol) was added to the reaction flask, methanol (1.5 mL) was added under an argon atmosphere, and the reaction was stirred at 25 C for 0.5 h to obtain a catalyst.(2) (4-Chlorophenyl)(pyridin-2-yl)methanone (52.2 g, 0.24 mol) was added to the autoclave, and the catalyst prepared in the step (1) was directly added, lithium t-butoxide (0.96 g). , 12mmol), methanol (100mL), charged with H2 (3.0MPa), reacted at 40 C for 12h, after the reaction is completed, the reaction solution is concentrated under reduced pressure to recover the organic solvent, then add appropriate amount of water, extracted with ethyl acetate, the liquid is The organic phase and the aqueous phase are dried and de-solubilized to obtain (S)-(4-chlorophenyl)(pyridin-2-yl)methanol (50.5 g,0.23 mol), yield: 96%, HPLC purity 98%, ee value 99.9%.The 1H NMR spectrum and the 13C NMR spectrum of (S)-(4-chlorophenyl)(pyridin-2-yl)methanol prepared in this example are shown in Fig. 1 and Fig. 2, respectively, from Fig. 1 and Fig. 2 The resulting (S)-(4-chlorophenyl)(pyridin-2-yl)methanol product can be determined. Racemic compound (4-chlorophenyl)(pyridin-2-yl)methanol and (S)-(4-chlorophenyl) prepared in Example 10The HPLC analysis spectra of the (pyridin-2-yl)methanol product are shown in Figures 3 and 4, respectively.Comparing Fig. 3 and Fig. 4, it can be seen that the two racemates of (4-chlorophenyl)(pyridin-2-yl)methanol have different peak times in the HPLC analysis spectrum.It was confirmed that the final preparation of Example 10 was (S)-(4-chlorophenyl)(pyridin-2-yl)methanol, and the product was highly pure.
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,6318-51-0, its application will become more common.
Reference:
Patent; Zhejiang University of Technology; Zhong Weihui; Ling Fei; Nian Sanfei; (17 pag.)CN109879800; (2019); A;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem