Title of article
Lewis acid-mediated [3+2] cycloaddition between hydrazones and olefins
Author/Authors
Kobayashi، نويسنده , , Sh? and Hirabayashi، نويسنده , , Ryoji and Shimizu، نويسنده , , Haruka and Ishitani، نويسنده , , Haruro and Yamashita، نويسنده , , Yasuhiro، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2003
Pages
4
From page
3351
To page
3354
Abstract
[3+2] Cycloaddition between hydrazones and olefins was accelerated in the presence of a stoichiometric amount of BF3·OEt2 or a catalytic amount of Zr(OTf)4, Hf(OTf)4, or Sc(OTf)3 under mild conditions. The corresponding pyrazolidine derivatives were obtained in moderate to high yields using this novel [3+2] Lewis acid catalysis.
Keywords
3 Cycloaddition , Lewis acid , hydrazone , Intramolecular , Intermolecular
Journal title
Tetrahedron Letters
Serial Year
2003
Journal title
Tetrahedron Letters
Record number
1661801
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