Ten acyclic and two cyclic 1, 3-bissulfonium bistetrafluoroborates have been synthesized by appropriate modification of the literature procedures for the preparation of such compounds. The acyclic salts are deprotonated readily by one molar-equivalent of potassium hydroxide to give 1, 3-bissulfonium ylides. However, under the same conditions, the cyclic salts decompose. Hydrogen exchange experiments reveal that the C2 hydrogens of the cyclic ...
[Kobayashi, Kazuhiro; Kawakita, Masataka; Yokota, Kouichi; Mannami, Tohru; Yamamoto, Koji; et al. Bulletin of the Chemical Society of Japan, 1995 , vol. 68, # 5 p. 1401 - 1408]
