1. Novel Concepts in Directed Biaryl Synthesis, part 19; for part 18 see Bringmann, G., Gulden, K.P., Fleischhauer, J., Kramer, B., Zobel, E., Tetrahedron, submitted.
2. Wiberg, K.B. and Boyd, R.H., J. Am. Chem. Soc., 94 (1972) 8426.
3. ?sawa, E., J. Comput. Chem., 3 (1982) 400.
4. ACS Monograph;U. Burkert,1982
5. Jaime, C., J. Comput. Chem., 4 (1990) 411.