Journal of Organic Chemistry, , vol. 75, # 16 p. 5679 - 5688

Muzalevskiy, Vasiliy M.; Nenajdenko, Valentine G.; Shastin, Aleksey V.; Balenkova, Elizabeth S.; Haufe, Guenter
Journal of Fluorine Chemistry, 2008 , vol. 129, # 10 p. 1052 - 1055

Yagupol'skii,L.M.; Fialkov,Yu.A.
J. Gen. Chem. USSR (Engl. Transl.), 1960 , vol. 30, p. 1291 - 1294,1318 - 1321