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Magnesium Exchange of Aryl Iodides

The iodine-magnesium exchange of aryl iodides with Bu3MgLi, which is prepared by mixing BuMgBr and BuLi in a 1 2 ratio in THF at O C, proceeds smoothly at 0°C or -78 °C within 0.5 h, and the resulting arylmagnesium species are trapped by electrophiles. Examples are shown in Tab. 3.12. [Pg.113]

The chemistry of organomagnesium ate complexes TABLE 6. Iodine-magnesium exchange of aryl iodides... [Pg.691]

Iodine-magnesium exchange of aryl iodides bearing a functional group proceeds at low temperatures to provide the corresponding arylmagneslum compounds, which react with electrophiles [121]. Some examples are shown in Tab. 3.9. [Pg.104]

When treated with potassium iodide, hot, aqueous solutions of triaryl telluronium chlorides precipitate triaryl telluronium iodides1 (Vol. IX, p. 1080). This halogen exchange reaction was used to isolate triaryl telluronium compounds from the mixtures obtained by reacting tellurium tetrachloride with aryl magnesium bromides (Vol. TX, p. 1080). [Pg.696]

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Aryl iodides

Aryl iodides arylation

Iodide exchangeable

Magnesium exchangeability

Magnesium iodide

Of aryl iodides

Of magnesium

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