unter voruebergehender Bildung eines Nitrosylmercaptids;

in methanol inert atm.; molar ratio Hg(CN)2:RSH 1:2.1, stirring, shaking (10 h); filtn., washing (MeOH), extraction (MeOH/CH2Cl2), filtn., drying (over KOH, 1E-3 to 1E-5 mbar, 1-2 weeks);

in dichloromethane mixt. of HgO and the thiol in CH2Cl2 stirred (N2, room temp., 2d); soln. concd., hexane added, standing at -20°C for 12h; elem. anal.;