%0 Journal Article
%T New spectral data of some flavonoids from Deguelia hatschbachii A.M.G. Azevedo
%A Magalh£¿es
%A Aderbal F.
%A Tozzi
%A Ana M. G. A.
%A Magalh£¿es
%A Eva G.
%A Moraes
%A Val¨¦ria R. de S.
%J Journal of the Brazilian Chemical Society
%D 2003
%I Sociedade Brasileira de Qu¨ªmica, SBQ
%R 10.1590/S0103-50532003000100022
%X from the roots of deguelia hatschbachii, the known flavonoids scandenin (1), methyl robustate (2) and 4',5- dihydroxy-6-(3,3-dimethylalyll)-7-methoxy flavanone (3) were isolated and characterized by comparison of their spectroscopic data with those found in the literature. now the inclusion of 1d- and 2d-nmr and ms/ms data has allowed the complete assignment of all hydrogen and carbon chemical shifts in their nmr spectra, as well as the elucidation of the fragmentation pathways of 1-3 in the mass spectrometer.
%K deguelia hatschbachii
%K leguminosae
%K 4-hydroxy-3-phenylcoumarins
%K flavanone.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-50532003000100022&lng=en&nrm=iso&tlng=en