Total synthesis of penmacric acids via an intermolecular radical addition reaction
摘要:
The total syntheses of penmacric acid and its three stereoisomers were accomplished through the intermolecular radical addition reaction of the 4-pyrrolidyl radical derived from trans-4-hydroxy-L-proline. Furthermore, 1',3-diepi-penmacric acid was synthesized stereoselectively via double stereoinduction in the radical reaction. (C) 2013 Elsevier Ltd. All rights reserved.
Total synthesis of penmacric acids via an intermolecular radical addition reaction
摘要:
The total syntheses of penmacric acid and its three stereoisomers were accomplished through the intermolecular radical addition reaction of the 4-pyrrolidyl radical derived from trans-4-hydroxy-L-proline. Furthermore, 1',3-diepi-penmacric acid was synthesized stereoselectively via double stereoinduction in the radical reaction. (C) 2013 Elsevier Ltd. All rights reserved.
A short formal synthesis of three epimers of penmacric acid
作者:Dimpy Sikriwal、Ruchir Kant、Prakas R. Maulik、Dinesh K. Dikshit
DOI:10.1016/j.tet.2010.05.102
日期:2010.8
An extremely short formal synthesis of three epimers of penmacric acid is accomplished starting from pyroglutamate in one or two steps. Stereochemical outcome in the reaction of Li and Ti enolates of pyroglutamate with imines is found to be dependent on both chelation and steric factors. (C) 2010 Elsevier Ltd. All rights reserved.