Aqueous Et₄NBrO₃/KBr as a versatile and environmentally benign source of bromine for the selective <i style="mso-bidi-font-style:normal">trans</i>-bromination of alkenes

Abstract

802-806An aqueous solution of tetraethyl ammonium bromate and potassium bromide is found to be an environmentally benign source of bromine at ambient temperature. This reagent is used for selective trans-dibromination of several substituted alkenes. The reaction conditions are mild and the yield of the products are high and other possible by-products such as bromohydrin formation and aromatic substitution have not been observed