%0 Journal Article
%T Oxidative Degradations of the Side Chain of Unsaturated Ent-labdanes. Part II
%A Luis Espinoza Catal¨¢n
%A Karen Catal¨¢n Mar¨ªn
%A H¨¦ctor Carrasco Altamirano
%A Mauricio Cuellar Fritis
%A Mar¨ªa Cristina Chamy
%J Molecules
%D 2007
%I MDPI AG
%R 10.3390/12122605
%X A route for the degradation of the side chain of ent-labdane derivatives has beendevised, giving the useful synthon 2¦Â,12-dihydroxy-13,14,15,16,17-pentanor-ent-labdane-8-one (8). The use of this compound in the preparation of terpenylquinone derivatives shallbe reported elsewhere. In addition we have synthesized the compound 2¦Â,12-diacetoxy-8¦Â,17-epoxy-13,14,15,16-tetranor-ent-labdane (10), which upon catalytic epoxide ringopening in alkaline or acid media gave rise in all cases to the formation of tricycliccompounds.
%K Ent-labdanes
%K selective degradations
%K unsaturated side chain.
%U http://www.mdpi.com/1420-3049/12/12/2605