With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.103260-44-2,Ethyl 2-(tetrahydro-2H-pyran-4-yl)acetate,as a common compound, the synthetic route is as follows.
To a solution of (Tetrahydro-pyran-4-yl)-acetic acid ethyl ester (2.0 g, 11.6 mmol) in 50 mL of THF at -78 C. LDA (1.0 M, 17.4 mL, 34.8 mmol) is added dropwise. The solution is stirred for 0.5 h and treated with HMPA (3.2 mL, 9.3 mmol) and MeI (4.94 g, 34.8 mmol). The reaction mixture is stirred at the same temperature for 0.5 h and for 1.5 h at 0 C., acidified with aqueous 1 N aqueous HCl solution, and extracted twice with ether (2¡Á40 mL). The organic phase is washed with saturated aqueous NaCl solution, dried (MgSO4), and concentrated in vacuo to give 1.8 g of 2-(Tetrahydro-pyran-4-yl)-propionic acid ethyl ester which is hydrolyzed without further purification., 103260-44-2
The synthetic route of 103260-44-2 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; Breitenstein, Werner; Erhardt, Claus; Maibaum, Juergen Klaus; Ostermann, Nils; Zimmermann, Juerg; Masuya, Keiichi; Konishi, Kazuhide; Yokokawa, Fumiaki; Kanazawa, Takanori; Jacoby, Edgar; Marzinzik, Andreas; Grosche, Philipp; Kawakami, Shimpei; US2009/233920; (2009); A1;,
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