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Steroids isopropylidene deriv

A neat method for cleaving acid-sensitive triterpenoid and steroid aglycones from L-arabinopyranosides and D-galactopyranosides involved oxidation (DMSO-acetic anhydride) of the corresponding 3,4-0-isopropylidene derivative to the glycopyranosidulose, which can be cleaved on u.v.-irradiation in t-but-anol. Photolysis of the model acetals (61) gave, depending on the substituents... [Pg.31]

See other pages where Steroids isopropylidene deriv is mentioned: [Pg.290]    [Pg.290]    [Pg.81]    [Pg.127]    [Pg.399]    [Pg.742]    [Pg.199]    [Pg.54]    [Pg.186]    [Pg.290]   
See also in sourсe #XX -- [ Pg.145 ]



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Isopropylidene derivatives

Steroid derivative

Steroidal Derivatives

Steroidal derivs

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