Zhao Zhou-xing
2011
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Journal
Journal of Qinghai University
Abstract
1,1,3-tribromo-2-phenylpropylene was synthesized from ω-bromoacetophenone,triphenylphosphine and carbon tetrahalide.Firstly,the reaction of acetophenone and bromine the ω-dibromoacetophenone.Then,1,1,3-tribromo-2-phenylpropylene was obtained by the one-pot three-component reactions of ω-bromoacetophenone,triphenylphosphine and carbon tetrahalides.The effects of the reaction material ratio,temperature and time on the yield of the product were investigated.The optimal reaction conditions were obtained: ratio of ω-bromoacetophenone to triphenylphosphine and carbon tetrahalides is 1︰2.2︰1,the reaction temperature 0 ℃,the reation time is 30 min.The yield under this optimum reaction conditions was up to 82.7%.The structure of the target product was confirmed by FTIR,1H NMR and 13C NMR.