CHED 598 |
| Reactions of chlorine and bromine (Cl2, Br2) with 4-Halo-1,1,2-trifluorobut-1-enes1 to form the 4- Halo-1,2,-dihalo-1,1,2,-trifluorobutane products are reported. Products form from ring-opened halonium ion intermediates2. In some cases, the neighboring number 4 halogen groups participate with the three-membered intermediates in the formation of five-membered tetramethylene halonium ions3. The five-membered tetramethylene halonium ions can open to give rearranged products, in which the number 4 halogen group is exchanged with the number 1 halogen. Formation of the rearranged products depends on the nucleophilicity of the number 4 group as well as the charge distribution on the number 1 carbon of the three member ring halonium ions.
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Undergraduate Research Poster Session: Organic Chemistry
11:00 AM-1:00 PM, Monday, March 26, 2007 Hyatt Regency Chicago -- Riverside Center, Poster
Division of Chemical Education |
