tri-n-butyl-tin hydride; 2,2'-azo-bisisobutyronitrile in benzene T=80°C; 1.5 h;

sodium dichromate; sulfuric acid in water Ambient temperature;

1: 1-nitroethane With potassium tert-butylate in dimethyl sulfoxide T=10°C; 0.166667 h; 2: (1H-1,2,3-benzotriazol-1-yl)(4-chlorophenyl)methanone in dimethyl sulfoxide T=10 - 20°C; 8 h;

potassium tert-butylate 1.) DMSO, room temp., 10 min; 2.) 25 deg C, 36 h; Yield given. Multistep reaction;