Polyfunctional organometallics are key intermediates for synthetic organic chemistry. 1 Organozinc compounds play an especially important role since they combine high reactivity with excellent functional group tolerance. 2 Benzylic zinc reagents are of particular interest since, in contrast to benzylic lithium 3 and magnesium 4 reagents, they tolerate numerous functional groups. 5 Recently, we have reported that LiCl considerably facilitates the insertion of metals (zinc, ...
