Efficient preparation of (1′R)-(−)-1-(2′-hydroxy-1′-phenylethyl)piperidin-2-one: synthesis of (2′S,3R)-(+)-stenusine
作者:Alejandro Castro -C.、Jorge Juárez -P.、Dino Gnecco、Joel L. Terán、Alberto Galindo、Sylvain Bernès、Raúl G. Enríquez
DOI:10.1016/j.tetasy.2005.01.023
日期:2005.3
An efficient oxidation of (2'R)-(-)-2'-phenyl-2'-(piperidin-1-yl)ethanol 2 with bromine to generate the corresponding piperidin-2-one 3 in 96% is described. In addition, starting from 3, (2'S,3R)-(+)-stenusine 8 was synthesized in 70% overall yield. The X-ray analysis of piperidine 6 center dot HCl is also reported. (C) 2005 Elsevier Ltd. All rights reserved.