CBr 4 Promoted α‐Acyloxyation of β‐Keto Esters and β‐Diketones by Sodium Carboxylates

Abstract CBr 4 promoted C−O coupling of β‐keto esters and β‐diketones with sodium carboxylates has been developed. This mild and operationally simple methodology, using sodium carboxylates as acyloxyation source and deacid reagent, provides an efficient pathway for the acquisition of prospective α‐acyloxylated ketones.