Indium(I) bromide promotes the reaction of α,α-dichloroketones with aldehydes to produce (E)-α,β-unsaturated ketones, exclusively. The transformation occurs via two sequential reactions, an aldol-type coupling between the two carbonylic reagents followed by an elimination process. © 2006 Elsevier B.V. All rights reserved.
Peppe, C., & das Chagas, R. P. (2006). Indium(I) bromide-promoted stereoselective preparation of (E)-α,β-unsaturated ketones via sequential intermolecular aldol-type coupling/elimination reactions of α,α-dichloroketones with aldehydes. Journal of Organometallic Chemistry, 691(26), 5868–5872. https://doi.org/10.1016/j.jorganchem.2006.09.046