Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... A mild and efficient method for the preparation of β,γ unsaturated ketones by a simple reaction on acid chloride with allyl, crotyl, prenyl bromide and indium in DMF is described. ... A mild and efficient method for the preparation of β,γ unsaturated ketones with indium in DMF is ...