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Copper bromide ketone dehydrogenation

Copper(II) bromide is another reagent that has been used successfully for the dehydrogenation of ketones and amides (equation 21). This procedure, which presumably proceeds via the a-bromo compounds, (c/. Section 2.2.2) was found to have particular advantages over a number of alternative methods for the dehydrogenation of some dihydrouracils. ... [Pg.144]

Alternatively, McMurray coupling of a,a -thiobis(aryl)ketones leads to 2,5-dihydroihiophenes, using comparable conditions, but at a higher temperature [105, 106]. The 2,5-dihydrothiophenes can easily be dehydrogenated to the 3,4-diarylthiophenes, with DDQ [105] or copper(II) bromide [107]. [Pg.27]

See other pages where Copper bromide ketone dehydrogenation is mentioned: [Pg.151]    [Pg.323]   
See also in sourсe #XX -- [ Pg.144 ]

See also in sourсe #XX -- [ Pg.144 ]

See also in sourсe #XX -- [ Pg.7 , Pg.144 ]

See also in sourсe #XX -- [ Pg.7 , Pg.144 ]

See also in sourсe #XX -- [ Pg.144 ]



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