With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.5382-16-1,4-Piperidinol,as a common compound, the synthetic route is as follows.
Example 2 Preparation of 4-Hydroxy-Piperidine-1-Carboxylic Acid Isopropyl Ester Intermediate (2) To a stirred mixture of 4-hydroxypiperidine (53.8 g, 1.000 eq), triethylamine (71.8 g, 1.334 equivalents), and ethyl acetate (498.8 g) was added neat isopropyl chloroformate (78.0 g, 1.1966 equivalents) at a rate sufficiently slow to maintain the reaction mixture temperature at 10-17 C. with reactor jacket cooling. After the addition had been completed, the reaction mixture was stirred at 20 C. for 18 hours. Then water (100 g) was added, and the resulting mixture was stirred for 15 minutes before the phases were separated. The organic phase was washed with two 100-gram-portions of 20 wt % aqueous NaCl by stirring for 15 min at 150 rpm before separating the aqueous wash. After a final wash with water (100 g), the organic phase was concentrated by distillation on a rotary evaporator at reduced pressure to provide product (2) (91.1 g, 92.0% yield) as light amber oil of 96.8% purity by GC.
As the paragraph descriping shows that 5382-16-1 is playing an increasingly important role.
Reference£º
Patent; Gharbaoui, Tawfik; Fritch, John R.; Krishnan, Ashwin M.; Throop, Beverly Wolgast; Kato, Naomi S.; US2006/155129; (2006); A1;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem