with indiummetal, and their reactions with carbonyl compounds and electron-deficientalkenes were examined. The reactions of simple 1,1-diiodoalkanes with indiummetal gave no defined products but benzal iodide gave stilbene in a moderate yield. α-Halo organoindium reagents drived from α,α-dibromo carbonyl compounds gave oxiranes and cyclopropanes upon the reactions with aldehydes and alkenes, respectively