1: 1.) NaH, diisopropylamine, 2.) n-BuLi, 3.) 2: 89 percent / SOCl2 / Ambient temperature 3: triethylamine / tetrahydrofuran / Ambient temperature View Scheme

1: 89 percent / SOCl2 / Ambient temperature 2: triethylamine / tetrahydrofuran / Ambient temperature View Scheme

triethylamine in tetrahydrofuran Ambient temperature;