Analyzing the synthesis route of 3612-20-2

3612-20-2 1-Benzylpiperidin-4-one 19220, 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.3612-20-2,1-Benzylpiperidin-4-one,as a common compound, the synthetic route is as follows.

A solution of 294.14 g 1-benzylpiperidin-4-one in 2.1 L methanol was added to a solution of 448 g ammonium carbonate in 2.1 L hot water. The yellow turbid reaction mixture was cooled with an ice bath. A solution of 77 g sodium cyanide in 200 ml water was added dropwise over 10 min (exothermic.). After the addition the ice bath was removed and the reaction mixture was stirred at ambient temperature for 3 days. The resulting precipitate was filtered, washed with water (3×) and dried in a vacuum oven at 50 C. to obtain the intermediate I.38. [0268] Yield: quantitative, 3612-20-2

3612-20-2 1-Benzylpiperidin-4-one 19220, apiperidines compound, is more and more widely used in various fields.

Reference:
Patent; BOEHRINGER INGELHEIM INTERNATIONAL GmbH; Dahmann, Georg; Fiegen, Dennis; Fleck, Martin; Hoffmann, Matthias; Klicic, Jasna; East, Stephen Peter; Napier, Spencer Charles R.; Scott, John; US2013/23502; (2013); A1;,
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