1: aniline With N-ethyl-N,N-diisopropylamine in ethanol T=0°C; Sakai triazole formation reaction; 0.166667 h; 2: N'-[2,2-dichloro-1-methylethylidene]-4-methylbenzenesulfonohydrazide in ethanol; acetonitrile T=0 - 20°C; Sakai triazole formation reaction; 16 h; chemoselective reaction;

in methanol T=0°C; 2 h;