1. For reviews, see A. K. Barber, L. J. Belf, and M. W. Buxton, in: Advances in Fluorine Chemistry (M. Stacey, J. C. Tatlow, and A. G. Sharpe, eds.), Vol. 3, p. 181, Butterworths, London (1963); and L. Dolby-Glover, Chem. Ind. (London), 518 (1986).
2. G. C. Finger and C. W. Kruse, J. Am. Chem. Soc. 78, 6034 (1956).
3. R. J. Tull, L. M. Weinstock, and I. Shinkai, U.S. Patent 4, 140, 719 (to Merck) [CA 90, 186558 (1979)]
4. R. A. North, U.K. Patent 2, 042, 507 (to Boots Co.) [CA 93, 185932 (1980)].
5. G. Fuller, German Patent 2, 902, 887 (to ISC Chemicals) [CA 91, 157474 (1979)].