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Enol borinates rearrangement

By employing optically active enol borinates instead of silylketene acetals, the Ireland-Claisen rearrangement has been further developed to an enantioselective... [Pg.61]

The overall process shown in equation (33) has been fairly well investigated. The presumed initial acylation products (34) undergo rearrangement to give alkenyloxyboranes (enol borinates) (35), the isolable piquets of the reaction. There has been no recorded instance of polyacylation in this process. [Pg.497]

The synthesis of rearranged products 28-31 with an anti relationship with respect to the stereocenters at C-2 and C-6 are prepared by starting the reaction sequence with (-Ef-enol borinate aldol reactions via the aldol products 25-27. [Pg.100]

See other pages where Enol borinates rearrangement is mentioned: [Pg.1452]    [Pg.1140]    [Pg.1671]   
See also in sourсe #XX -- [ Pg.1140 ]



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Borinates

Borinates, enol

Borine

Enol borinate

Enolates rearrangements

Enols rearrangement

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