A Convenient Halogenation of α,β-Unsaturated Carbonyl Compounds with OXONEŽ and Hydrohalic Acid (HBr, HCl)
Kyoung-Mahn Kim*, In-Hwan Park
*Korea Research Institute of Chemical Technology, Yusong P. O. Box 107, Taejon 305-600, Korea, Email: kmkimpado.krict.re.kr
K.-M. Kim, I.-H. Park, Synthesis, 2004, 2641-2644.
α-Bromo- or α-chloro-α,β-unsaturated carbonyl compounds were prepared in good yields by addition of hydrobromic acid or hydrochloric acid to α,β-unsaturated carbonyl compounds in the presence of Oyone in CH2Cl2 followed by treatment of the resulting dihalides with Et3N.
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