Organic Chemistry Portal



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:

K.-M. Kim, I.-H. Park, Synthesis, 2004, 2641-2644.

DOI: 10.1055/s-2004-831232


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.

see article for more examples

Key Words

halogenation (bromination, chlorination), OXONEŽ, hydrobromic acid, hydrochloric acid, α,β-unsaturated carbonyl compounds

ID: J66-Y2004-2380