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Hoffmann’s cycloaddition

Hoffmann s cycloaddition (67) of the oxyallyl cation 272, generated from 2,4-dibromopentan-2-one with LeGoff s zinc-copper couple (68). Hydrogenation followed by Baeyer-Villiger oxidation gave the lactone 274, with C-2, C-3 and C-6 correctly set up. Methanolysis gave a single hydroxyester,... [Pg.257]

See also in sourсe #XX -- [ Pg.18 , Pg.257 ]

See also in sourсe #XX -- [ Pg.257 ]

See also in sourсe #XX -- [ Pg.18 , Pg.257 ]



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Hoffmann

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