A highly stereoselective approach to novel 2,2,4-trisubstituted pyrrolidines by halocylization: Key intermediates towards syntheses of nitrogen analogs of Noxafil®
Journal Article
A convenient synthesis of novel 2,2,4-trisubstituted pyrrolidines via stereoselective 5-exo iodocyclization of the 2,2-disubstituted olefins 8 and 9 is described. Single crystal X-ray analysis of the oxazolidinone 15 confirmed the relative stereochemistry in this cyclization. As observed earlier in the formation of 2,2,4-trisubstituted tetrahydrofurans, the presence of a bulky aryl substituent on the olefin appears to direct the stereochemical outcome of these halocyclizations. © 2003 Elsevier Ltd. All rights reserved.
Full Text
Duke Authors
Cited Authors
- McCormick, JL; Osterman, R; Chan, TM; Das, PR; Pramanik, BN; Ganguly, AK; Girijavallabhan, VM; McPhail, AT; Saksena, AK
Published Date
- October 20, 2003
Published In
Volume / Issue
- 44 / 43
Start / End Page
- 7997 - 8000
International Standard Serial Number (ISSN)
- 0040-4039
Digital Object Identifier (DOI)
- 10.1016/j.tetlet.2003.08.114
Citation Source
- Scopus