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The 1,3-dipolar cycloaddition of cyclic nitrones with 1,2-disubstituted alkenes

✍ Scribed by Sk.Asrof Ali; Javaid H. Khan; Mohammed I.M. Wazeer; Herman P. Perzanowski

Book ID: 108372167
Publisher: Elsevier Science
Year: 1989
Tongue: French
Weight: 644 KB
Volume: 45
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(01)89124-9

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## Abstract 1,3‐Dipolar cycloaddition of nitrones with ethyl vinyl ether or 2,3‐dihydrofuran proceeds smoothly in the presence of a catalytic amount (10 mol%) of ytterbium triflate to afford isoxazolidines and dicyclic isoxazolidine respectively with good yields and high stereoselectivity.