Chiral organometallic reagents. Part XXIV.1 Iodine ate-complexes as intermediates in the iodine–lithium exchange reaction on 1,1-diiodoalkanes

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Michael Müller, Hans-Christian Stiasny, Mark Brönstrup, Andrew Burton and Reinhard W. Hoffmann


Abstract

The iodine–lithium exchange reaction on the 1,1-diiodoalkanes 17 at –110 °C is initiated by the irreversible formation of yellow iodine ate-complexes, which are slowly transformed into the α-iodoalkyllithium compounds 21.


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