Terpenoids. Part LXVI. Simultaneous functionalization of the angular 10- and 13-methyl groups in 11β-hydroxylanostan-3β-yl acetate by oxidation with lead tetra-acetate–iodine
Abstract
Under suitable reaction conditions, it was found that both angular methyl groups (on C-10 and C-13) in the lanostane series can be functionalized in one step if an 11β-hydroxy-derivative is used as precursor.