n-butyllithium; N,N,N',N,-tetramethylethylenediamine in hexane Ambient temperatureThe starting sulphide (which possesses an activated methylene group β- to the phenyltio group) undergoes facile 1,2-elimination.; Product distribution;

sulfuric acid in water 4 h;

1: 55 percent / TsOH / benzene / 24 h / Heating 2: 58 percent / diethyl ether; toluene / 6 h / 85 - 95 °C / other α-(1H-benzotriazol-1-yl)alkyl sulfides View Scheme

in diethyl ether; toluene T=85 - 95°C; 6 h;