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Brook rearrangement annulation reaction

The novel [6+2] annulation approach developed by the Takeda group has also been included in a threefold anionic/pericyclic process (Scheme 2.149) [340]. The reaction leads to functionalized eight-membered rings 2-659 in a highly stereoselective manner, starting from acylsilanes 2-656 and 3-(trimethylsilyl)vinyl-lithium (2-657). After 1,2-addition and 1,2-Brook rearrangement, the cyclobutane 2-... [Pg.148]

The tricyclo[5.3.0.0 " ]decenone ring system (228) has been constructed by reaction of 3-alkyl-3-haloacryloylsilanes (226) with the lithium enolate of 1-acetylcyclopent-l-ene (227) via a Brook rearrangement-mediated 3 - -4-annulation, ... [Pg.607]

See other pages where Brook rearrangement annulation reaction is mentioned: [Pg.230]    [Pg.149]    [Pg.522]    [Pg.321]    [Pg.149]    [Pg.1701]    [Pg.65]    [Pg.229]    [Pg.209]    [Pg.287]    [Pg.221]    [Pg.209]   
See also in sourсe #XX -- [ Pg.65 ]



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