in toluene T=0°C;

in dichloromethane T=0°C; 2 h;

in toluene T=0°C;

Stage #1: 1-[[2-(trimethylsilyl)ethoxy]methyl]-1H-imidazole With  n-butyllithium; chloro-trimethyl-silane in  tetrahydrofuran; hexane T=-78 - 20°C; Stage #2: N,N-dimethyl-formamide With  tert.-butyl lithium in  tetrahydrofuran; hexane T=-78 - 20°C;