in dichloromethane
addn. of S-comp. to small portions of (CF3CO)2O and 90 to 99percent H2O2, after an hour addn. of (CF3CO)2O and 90percent H2O2, mild reflux 10 h;
Furin, G. G.; Krupoder, S. A.; Yakobson, G. G.
Izv. Sibirsk. Otd. Akad. Nauk SSR Ser. Khim. Nauk, 1976 , # 5 p. 147 - 154
C.A., 1977 , vol. 86, p. 72110