1: toluene With tert.-butylhydroperoxide; N-bromosuccinmide in neat (no solvent) T=20°C; 2 h; 2: carbon disulfide; benzylamine in neat (no solvent) T=20°C; 5 h;

tetra-(n-butyl)ammonium iodide; caesium carbonate in N,N-dimethyl-formamide T=0 - 20°C; 4 h;