1. V. A. Zagorevskii and K. I. Lopatina, Zh. Obshch. Khim.,33, 2525 (1963).
2. G. A. Tolstikov, E. Ya. Borisova, M. I. Cherkashin, V. M. Komarov, and E. V. Arzamastsev, Usp. Khim.,60, 852 (1991).
3. C. J. Schmidle and R. C. Mansfield, J. Am. Chem. Soc.,77, 5698 (1955).
4. A. Ziering, A. Motchane, and J. Lee, J. Org. Chem.,22, 1521 (1957).
5. I. N. Nazarov, N. S. Prostakov, and N. N. Mikheeva, Zh. Obshch. Khim.,28, 2746 (1958).