The reductive system of allyl bromide and indium(0) in water generated monoallylindium(III) dibromide and diallylindium(III) bromide. These compounds were characterized by X-ray analysis after complexation with 3,5-dibromopyridine or 4-(dimethylamino)pyridine, respectively. Both isolated complexes showed high nucleophilicity and reacted with benzaldehyde to give the allylation product. The diallylin-

Transmetalation between allylic stannanes and indium halides gave allylic indium dihalides. The bond length of In−C is 2.172 Å, which is close to the reported average indium−carbon bond length. The isolated allylic indium dibromide with two phthalan ligands showed nucleophilicity for a carbonyl compound.

The reaction of cinnamyl bromide with indium(0) gave two allylindium species, cinnamylindium dibromide and dicinnamylindium bromide. Either species were isolated after complexation of appropriate pyridine-type Lewis bases. The use of 3,5-dibromopyridine (Br 2 py) as a Lewis base gave cinnamylindium dibromide with two Br 2 py ligands. Dicinnamylindium bromide was isolated with 4-(dimethylamino)pyridine (Me 2 Npy) ligands. In both cases, the indium atom showed a trigonal-bipyramidal coordination sphere with the

The cover picture shows the species generated in the reductive system of allyl bromide with indium(0) in water. They include monoallylindium(III) dibromide, diallylindium(III) bromide, and allyl(μ‐oxido)indium(III). These compounds were characterized on the basis of X‐ray analysis. The allylindium compounds showed nucleophilicity towards carbonyl compounds with different reactivities. Details are discussed in the Short Communication by M. Yasuda, A. Baba et al. on p. 5359 ff.