Yoshida, Yasuo; Kimura, Yoshizaku; Tomoi, Masao
Tetrahedron Letters, 1989 , vol. 30, # 51 p. 7199 - 7202

Banks, R. Eric; Mothersdale, Kevin N.; Tipping, Anthony E.; Tsiliopoulos, Efthimios; Cozens, Barry J.; et al.
Journal of Fluorine Chemistry, 1990 , vol. 46, # 3 p. 529 - 537