Substituted isoxazolidinium salts react with LiAlH4 to yield ring opened hydroxylamines. The novel bimolecular reaction mechanism has been investigated by deuterium labelling and the structure of the products ascertained by spectroscopic methods with the aid of the MIKE technique. The overall process can be defined as a ring-opening substitution, which is controlled by steric and conformational factors
[GRAPHICS]A novel and simple procedure for reduction of hyproxylamines to the corresponding amines by means of indium powder in aqueous media is reported. Applicability to one-pot reactions and isoxazolidine N-O bond reduction is also demonstrated. A catalytic version of the process using 2-5% In in the presence of other metals (Zn, Al) has been successfully developed.
N,O-heterocyclics13;-14conversion of isoxazolidines into α,β enones
作者:Angelo Liguori、Giovanni Sindona、Nicola Uccella
DOI:10.1016/s0040-4020(01)91147-0
日期:1984.1
Oxidation of isoxazolidines with peroxy acids. Nitrones and N-hydroxy-1,3-tetrahydrooxazines
作者:Norman A. LeBel、Mary Ellen Post、Dorothy Hwang
DOI:10.1021/jo01325a015
日期:1979.5
Samarium(II) iodide reduction of isoxazolidines
作者:Julia Revuelta、Stefano Cicchi、Alberto Brandi
DOI:10.1016/j.tetlet.2004.09.050
日期:2004.11
SmI2 was used as reducing agent for the N-O bond cleavage in isoxazolidines. The procedure revealed is general and particularly useful for the transformation of 5-spirocyclopropane isoxazolidines to the corresponding beta-aminocyclopropanols, a troublesome transformation with other known reagents. (C) 2004 Elsevier Ltd. All rights reserved.