V. Duchenet et Y. Vallee, THE REACTION OF THIOLS WITH ELECTRON-DEFICIENT THIOALDEHYDES - A NEW SYNTHESIS OF UNSYMMETRICAL DISULFIDES, Journal of the Chemical Society, Chemical Communications, (9), 1993, pp. 806-807
Thiols react with thioaldehydes bearing an alpha-electron-withdrawing
substituent in a thiophilic manner to give unsymmetrical disulfides in
medium to good yields.