Iodine is more easily replaced than either and

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Unformatted text preview: electrophilic than many other ketones because of the strain of a carbonyl group in a four- membered ring. This time the protonation is shown. Mg, THF O Br BrMg H OH O The third example raises the question of which halogen is replaced. In fact bromine is more easily replaced than chlorine. Iodine is more easily replaced than either and fluorine usually does not react. Don’t be disappointed if you failed to see this. Cl Br BuLi Cl Li O Cl ■ This synthesis of carboxylic CO2 acids is on p. 190/1 of the textbook....
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This document was uploaded on 02/10/2014.

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