Downstream synthetic route of 122860-33-7

122860-33-7 Benzyl 4-(hydroxymethyl)piperidine-1-carboxylate 736490, apiperidines compound, is more and more widely used in various fields.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.122860-33-7,Benzyl 4-(hydroxymethyl)piperidine-1-carboxylate,as a common compound, the synthetic route is as follows.

26c. Phenylmethyl 4-formylpiperidinecarboxylate To a stirred solution of oxalyl chloride (2M solution in dichloromethane, 10.9 mL, 21.9 mmol) was added DMSO (3.1 mL, 3.4 g, 43.8 mmol) in dichloromethane (6 mL) over a period of 15 minutes. The product of Example 26b (4.4 g, 17.5 mmol) in dichloromethane (7 mL) was then added at -78 C. over a period of 15 minutes. The resultant solution was stirred at -78 C. for 1 hour and then triethylamine (12.2 mL, 8.86 g, 87.5 mmol) was added, dropwise, over a period of 15minutes. The mixture was further stirred at -78 C. for 30 min and then at 0 C. for 15 min. The reaction mixture was quenched with water and extracted with dichloromethane. The combined organic phase was washed with 1% HCl, water, dried over sodium sulfate, filtered and evaporated to give the title compound (4.4 g, 100%) which was used in the next step without purification. 1H NMR (300 MHz, CDCl3) delta9.65 (s, 1H), 7.28-7.38 (m, 5H), 5.12 (s, 2H), 4.04 (br d, J=13.1 Hz, 2H), 2.97-3.06 (m, 2H), 2.38-2.45 (m, 1H), 1.88-1.92 (m,2H), 1.52-1.64 (m, 2H). 13C NMR (75 MHz, CDCl3) delta202.7, 155.2, 136.7, 128.5, 128.6, 127.9, 67.2, 47.8, 43.0, 25.1. LRMS (APIMS) m/z 248 (MH+)., 122860-33-7

122860-33-7 Benzyl 4-(hydroxymethyl)piperidine-1-carboxylate 736490, apiperidines compound, is more and more widely used in various fields.

Reference:
Patent; Fang, Xinqin; Garvey, David S.; Gaston, Ricky D.; Lin, Chia-En; Ranatunga, Ramani R.; Richardson, Stewart K.; Wang, Tiansheng; Wang, Weiheng; Wey, Shiow-Jyi; US2003/203915; (2003); A1;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem