Title of article
Addition of secondary amines to alkynylphosphonates
Author/Authors
Panarina، نويسنده , , Anna E. and Dogadina، نويسنده , , Alla V. and Zakharov، نويسنده , , Valentin I. and Ionin، نويسنده , , Boris I.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2001
Pages
4
From page
4365
To page
4368
Abstract
Addition of secondary amines to alkynylphosphonates catalyzed by Cu(I) salts proceeds regio- and stereospecifically to form (E)-2-(dialkylamino)alkenylphosphonates. The E-configuration was proved by analysis of 13C–31P vicinal spin–spin coupling constants in the NMR spectra of the products and authentic model compounds. The 3JPC constants in the model compounds fall in the range of 6–12 Hz for the cis arrangement of the coupled nuclei and are equal to or higher than 16 Hz for the trans configuration. Related coupling constants in the addition products are around 5 Hz, that is, corresponding to cis coupling.
Journal title
Tetrahedron Letters
Serial Year
2001
Journal title
Tetrahedron Letters
Record number
1645490
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