Free radical mediated bromization of methylenecyclopropanes: Preparation of 2,4-dibromobutenes witho

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A series of 2,4-dibromobutenes were synthesized by the reaction of methylenecyclopropanes with KBr in HOAc in the presence of dibenzoyl peroxide, providing an environment friendly method for the synthesis of 2,4-dibromobutenes.
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