Title of article
The synthesis and structure of new vinylogous carbamates of sparteine
Author/Authors
W?odarczak، نويسنده , , Jacek and Wysocka، نويسنده , , Waleria and Katrusiak، نويسنده , , Andrzej، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2010
Pages
6
From page
12
To page
17
Abstract
Synthesis of new (E)-(-)-[2-methyl (2), ethyl (3), isopropyl (4), benzyl (5) and phenyl (6)] carbonylmethylideno-17-oxosparteine by the Eschenmoser coupling reaction has been described. Stereochemistry of these compounds has been determined by 13C and 1H NMR and that of compound 2 additionally by X-ray analysis. The Haasnoot equation has been used to determine the HCCH dihedral angle in (E)-(-)-2-methyl-(methylcarbonylomethylideno)-17-oxosparteine on the basis of NMR spectroscopy.
Keywords
Vinylogous carbamates , Eschenmoser coupling reaction , 1D and 2D NMR spectroscopy , Haasnoot equation , Bis-quinolizidine alkaloids , X-ray date
Journal title
Journal of Molecular Structure
Serial Year
2010
Journal title
Journal of Molecular Structure
Record number
1967431
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