toluene-4-sulfonic acid in benzene 8 h; Heating;

indium; chloro-trimethyl-silane in acetonitrile 2 h; Reflux;

tetra(n-butyl)ammonium hydrogensulfate in acetonitrile T=25°C; Hg cathode, Pt-wire anode, Ag/AgNO3 (0.1N) reference elctrode;

1: 2,2-bis(phenylthio)-butane With Cp2Ti[P(OEt)3]2 in tetrahydrofuran T=20°C; complexation; 0.25 h; 2: 4-phenylbutyronitrile in tetrahydrofuran T=20°C; Alkylation; 1 h; 3: With sodium hydroxide Hydrolysis;

1: 2,2-bis(phenylthio)-butane With Cp2Ti[P(OEt)3]2 in tetrahydrofuran T=20°C; complexation; 0.25 h; 2: 4-phenylbutyronitrile; methyl iodide in tetrahydrofuran T=20°C; Alkylation; 1.5 h; 3: With sodium hydroxide Hydrolysis;