A facile three-step synthesis of 1,2-amino alcohols using the Ellman homochiral tert-butylsulfinamide
Addition of organometallic reagents to tert-butylsulfinimines derived from tert-butyldimethylsiloxyacetaldehyde stereoselectively generates protected 1,2-amino alcohols. Removal of the acid labile protecting groups affords amino alcohols in high yield. The predominant diastereomer is opposite to tha...
Saved in:
Published in: | Tetrahedron letters Vol. 42; no. 11; pp. 2051 - 2054 |
---|---|
Main Authors: | , , , , |
Format: | Journal Article |
Language: | English |
Published: |
Elsevier Ltd
11-03-2001
|
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | Addition of organometallic reagents to
tert-butylsulfinimines derived from
tert-butyldimethylsiloxyacetaldehyde stereoselectively generates protected 1,2-amino alcohols. Removal of the acid labile protecting groups affords amino alcohols in high yield. The predominant diastereomer is opposite to that predicted by the traditional Ellman model; therefore, a chelation model invoking rapid
E/
Z isomerization of the imine is proposed to rationalize the observed selectivity.
Graphic |
---|---|
ISSN: | 0040-4039 1873-3581 |
DOI: | 10.1016/S0040-4039(01)00122-8 |