1. Substituted Heterocyclic Compounds by Selective Control of Halogen-Dance Reactions
    J. Froehlich, Progr. Heterocycl. Chem., 1994, 6, 1.
  2. Synthesis of 2-Substituted 3,5-Dibromothiophenes via a Rearrangement Reaction: A New Example of a Base-Catalyzed Halogen Dance Reaction
    F.Sauter, H.Froehlich and W.Kalt, Synthesis , 1989 10, 771.
  3. Base Catalyzed Halogen Dance Reaction at Thiophenes: A Spectroscopic Reinvestigation of the Synthesis of 2,5-Dibromo-3-trimethylsilyl-thiophene
    H.Froehlich and W.Kalt, J.Org.Chem., 1990, 55, 2993.
  4. Synthesis of Trisubstituted Thiophenes via a Halogen Dance Reaction at 2-Bromo-5-methylthiophene
    J. Froehlich, C. Hametner and W. Kalt, Institute of Organic Chemistry, Technical University Vienna, Monatsh. Chemie., 1996, 127, 325.