Bromination of substituted benzenes

Methoxyphthalide has also been prepared by nonregioselective bromination of substituted benzenes,9 by L-Selectride reduction10 11 of 3-methoxyphthalic anhydride,12 13 by metalation of 3-methoxybenzyl alcohol14 15 and its chromium... [Pg.236]

Such a ligand coupling mechanism may be involved in the site-specific one-step bromination of substituted benzenes by dimethylsulfoxide-hydrogen bromide. 37... [Pg.51]

Q The bromination of substituted benzenes in acetic acid/water mixtures shows a p value of —12.1 and a dependence on cr+ rather than cr or cr. What conclusions can be drawn ... [Pg.57]

Quantitative determination of the relative rates of electrophilic bromination of substituted benzenes (Eq. 8.15), as described in Section 15.5, relies on this application of UV-Vis spectroscopy. The rates of reaction are found by following the disappearance of molecular bromine, whose maximum is in the visible region at 400 nm. [Pg.301]

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