1. A. E. Arbuzov and K. V. Nikonorov, Zh. Obshch. Khim.,18, 2008 (1948).
2. M. N. Danchenko and A. D. Sinitsa, Zh. Obshch. Khim.,57, No. 8, 1919 (1987).
3. N. I. Rizpolozhenskii, V. D. Akamsin, and R. M. Eliseenkova, Izv. Akad. Nauk SSSR, Ser. Khim., No. 1, 198 (1971).
4. A. N. Pudovik and É. M. Faizullin, Zh. Obshch. Khim.,38, No. 8, 1908 (1968).
5. J. W. Baker, R. E. Stenseth, and L. C. D. Groenweghe, J. Am. Chem. Soc.,88, No. 9, 3041 (1966).