| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1403974 | Journal of Molecular Structure | 2010 | 6 Pages |
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.
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Jacek Włodarczak, Waleria Wysocka, Andrzej Katrusiak,