1: (phenylsulfonyl)methane With n-butyllithium; N,N,N',N,-tetramethylethylenediamine in tetrahydrofuran; hexane T=-78°C; 0.25 h; Inert atmosphere; 2: 2-iodo-propane in tetrahydrofuran; hexane T=-78 - -60°C; 0.166667 h; Inert atmosphere;

in benzene 24 h; Ambient temperature;

in N,N-dimethyl-formamide Substitution;

n-butyllithium; copper(II)-propionate 1,) hexane, -78 deg C, THF, r.t., 0.5 h; 2.) THF, -78 deg C, 0.5 h; Yield given. Multistep reaction;