Journal of Fluorine Chemistry, 46 (1990) 423-43 1 ... Masato YOSHIDA,* Tatsuro YOSHIDA, and Nobumasa RAMIGATA Department of Chemistry, Faculty of Science, Tokyo Metropolitan University, Fukazawa ... 2 WH Gumprecht and RH Dettre, J. Fluorine Chem., 2 (1975) 245. ...