%0 Journal Article %T Chemical transformation of abietic acid to new chiral derivatives %A Santos Catarina dos %A Zukerman-Schpector Julio %A Imamura Paulo M. %J Journal of the Brazilian Chemical Society %D 2003 %I Sociedade Brasileira de Qu¨Şmica, SBQ %X Chemical transformations of the C-ring abietic acid (1a) for the preparation of some new chiral synthons are described. From the intermediate keto-aldehyde 9, readily available from 1b through the ozonide 2, the new tetracyclic diterpene 4 was synthesized. Additionally, from 13 and 17, previously prepared from 2, the bicyclic compounds 14, 15 and 16 and the derivatives containing the abeo-abietane[6,6,5] framework 19 and 20 were also synthesized. %K abietic acid %K ozonization %K chiral synthon %K abeo-abietane derivatives %U http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532003000600017