Catalytic disulfenylation reaction of alkenes by common Lewis acids has been investigated in detail. While reactions by FeCl(3) were feasible with cycloalkenes and other simple alkenes, much faster and excellent conversions were possible by AlCl(3) even with the substrates less reactive toward FeCl(3).
The addition of organicdisulfides to alkenes, giving vic-bis(alkylthio)alkanes and vic-bis(arylthio)alkanes, proceeds in chlorobenzene in the presence of a catalytic amount of a variety of metal c...
Treatment of diphenyl disulfide and terminal alkynes with gallium trichloride afforded (E)-1,2-diphenylthio-1-alkenes selectively (E/Z > 20/1). Alkenes also underwent this reaction to form trans adducts.
Kitamura, Tsugio; Matsuyuki, Jun-ichi; Taniguchi, Hiroshi, Journal of the Chemical Society. Perkin transactions I, 1991, # 6, p. 1607 - 1608