Thermal rearrangements of some neo-clerodane diterpenoids
作者:Maria C. De La Torre、Pilar Fernandez、Benjamin Rodriguez
DOI:10.1016/s0040-4020(01)86910-6
日期:1987.1
Some neo-clerodane diterpenoids isolated from plants belonging to the Teucrium genus and possessing different functionalities at the C-6, C-7 and C-19 positions were heated above their melting points without any solvent. This treatment produced good yields of different rearranged products, which are useful intermediates for the synthesis of other natural neo-clerodane derivatives.
Hemisynthesis of some biogenetically anomalous 17β-neoclerodane diterpenoids
作者:María J. Domínguez、Ekkehard Mössner、María C. de la Torre、Benjamín Rodríguez
DOI:10.1016/s0040-4020(98)00890-4
日期:1998.11
neoclerodane framework. The acid catalysed nucleophilic substitution of a 20-O-acetyl group in 20,12-hemiacetals by a 20-O-methyl group was also studied. Other reactions (α-ketol rearrangements, formation of enol esters and reduction of diosphenol groups) as well as chemical correlations between several neoclerodanes were also carried out, providing useful data for the chemistry of these compounds. Finally