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Vogel’s cascade

SCHEME 22.41. Reaction cascade (Vogel s cascade) combining electron-rich dienes and alkenes (enoxysilanes, allylsilanes) into stereotriads, polysubstituted sulfonamides, or sulfones in one-pot... [Pg.644]

Applying Vogel s cascade to diene 185 and enoxysilane 186, a rapid access (nine steps) to Koert et al. s C16-C28 polyketide fragment 194 (Scheme 22.46) of apoptoUdi-nones A and D has been realized. This fragment is adequately protected for the glycosidation steps necessary in the constmction of apoptolidin A. [Pg.648]

Dolabriferol was isolated from Dolabrifera dolabrifera, a shell-less mollusk. This natural product is made of two polypropionate subunits linked by an ester function, a structural motif that is also found in baconipyrones A-D (see section 4.3). Dolabriferol is assumed to protect the mollusk from predators. When the Vogel s cascade... [Pg.649]

See other pages where Vogel’s cascade is mentioned: [Pg.642]    [Pg.645]    [Pg.648]    [Pg.651]    [Pg.651]    [Pg.642]    [Pg.645]    [Pg.648]    [Pg.651]    [Pg.651]   


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