Journal of the Brazilian Chemical Society
versão impressa ISSN 0103-5053
GUSEVSKAYA, Elena V. e SILVA, Marcio J. da. Elucidation of the stereochemistry of diterpene derivatives obtained by palladium catalyzed oxidative coupling-oxidation of camphene. J. Braz. Chem. Soc. [online]. 2003, vol.14, n.1, pp. 83-89. ISSN 0103-5053. http://dx.doi.org/10.1590/S0103-50532003000100014.
The structures of diterpene derivatives resulting from the palladium catalyzed tandem oxidative coupling-oxidation of camphene, i.e., bis(2,2-dimethyl-bicyclo[2.2.1]hept-3-ylidene)ethane and (4,4-dimethylbicyclo[3.2.1]oct-2-on-3-yl)(2,2-dimethylbicyclo[2.2.1]hept-3-ylidene)methane, were elucidated using one- and two-dimensional 1H and 13C NMR techniques. Their stereochemistry was determined unambiguously by NOESY experiments.
Palavras-chave : camphene oxidation; palladium catalyst; diterpene derivatives; NMR spectroscopy; NOESY.