1. V. M. Belikov, Yu. N. Belokon', V. A. Karginov, N. S. Martinkova, and M. B. Saporovskaya, Izv. Akad. Nauk SSSR, Ser. Khim.,1976, 1277.
2. M. Ando and S. Emoto, Bull. Chem. Soc. Jpn.,42, 2624, 2628 (1969).
3. G. N. Weinstein, M. J. O'Connor, and R. H. Holm, Inorg. Chem.,9, 2104 (1970).
4. P. Pfeiffer, W. Offerman, and H. Werner, J. Prakt. Chem.,159, 313 (1942).
5. Yu. K. Yur'ev, Practical Operations in Organic Chemistry [in Russian], Izd-vo Mosk. Unta (1946), p. 57.