Regio- and stereoselective synthesis of isoxazolidine derivatives by asymmetric 1,3-dipolar cycloaddition reaction of chiral nitrones with 1-propene-1,3-sultone

Hong Kui Zhang*, Wing Hong CHAN, Albert W M LEE, Wai Yeung WONG

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

7 Citations (Scopus)

Abstract

(Chemical Equation Presented) Asymmetric 1,3-dipolar cycloadditions of chiral nitrones to 1-propene-1,3-sultone (1) were investigated. Chiral nitrones 6a-e reacted with sultone 1 in toluene at 90°C for 24-36 h to give the corresponding isoxazolidines in moderate yields with high regioselectivities and stereoselectivities. The diastereoselectivity of this reaction varied with the choice of dipolarophile and the steric demands of nitrones. When sultone 1 was allowed to react chiral nitrone 6e, a much better diastereoselectivity of up to 5.1:1 was observed.

Original languageEnglish
Pages (from-to)957-962
Number of pages6
JournalJournal of Heterocyclic Chemistry
Volume45
Issue number4
DOIs
Publication statusPublished - Jul 2008

Scopus Subject Areas

  • Organic Chemistry

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