1: benzenesulphinic acid sodium salt With polystyrene-supported-SeCl in N,N-dimethyl-formamide
T=20°C; 6 h; solid-phase reaction;
2: acrylonitrile With 2,2'-azo-bisisobutyronitrile in benzene
20 h; Heating;
3: With dihydrogen peroxide in tetrahydrofuran
T=20°C; 2 h;
